Beaming as he talked about
the royal baby, Harry joked that he was going to sting his brother William with expensive baby sitting charges.
His comments came during a visit to a photographic exhibition in London documenting the work of his Africa-based charity Sentebale.
Fun uncle: Prince Harry was given a present by a fan for his new nephew Prince George
Wenn
Asked what his mission was as an uncle the royal replied: "To make sure he has a good upbringing, and keep him out of harm's way and to make sure he has fun.
"The rest I'll leave to the parents."
Laughs: Harry in relaxed mood
Wenn
The baby is destined to become George VII if his grandfather, the Prince of Wales, and father, William, choose to use their first names when they become monarchs, and not a middle name.
Responsibility: Prince Harry said he will keep his new nephew out of harm's way
Rex
The infant prince's name is thought to be in tribute to the Queen's father, King George VI.
The 28-year-old prince said: "When I saw him he was crying his eyes out like all babies do I suppose - it's fantastic to have another addition to the family.
"I only hope my brother knows how expensive my baby sitting charges are."
Ever the joker when asked what his nephew was like he held up his hands and said: "Well he's about that long and about that wide."
***
Royal Baby: George Gives UK Business Boost
The Royal birth has already helped sales for some retailers, with predictions that Prince George could add £250m to the economy.
10:25am UK, Saturday 27 July 2013
Video: Royal Baby: George Boosts UK Businesses
By Emma Birchley, Sky News Correspondent
The UK's newest Prince might be less than a week old but he is already proving to be a trendsetter as aspiring parents race to keep up with the Cambridges.
Sales of Britax Baby Safe seats have trebled at Kiddicare superstores since the newborn set off in one on his first car journey after leaving St Mary's Hospital on Tuesday.
And there has been a surge in orders of the £45 hand-finished merino wool shawl made by GH Hurt and Son in Nottingham that Prince George of Cambridge was wrapped in for his first photo shoot.
Alex Fisher, commercial director at Kiddicare, said: "I think it's fabulous news in terms of parents engaging with the fact there is a Royal baby.
"I think it will encourage people to renew and buy new products.
"Parents look at what is the latest product, who is the latest celebrity, and I think on the back of that the seat by default becomes aspirational."
There was so much interest in the dress worn by the Duchess of Cambridge that the designer's website crashed earlier in the week.
But it later emerged that the Jenny Packham design was a one-off and not for sale.
The royal seal of approval has been a blessing for some companies
The Centre for Retail Research predicts the new arrival will end up boosting the UK economy by close to £250 million.
That includes everything from the champagne sipped to help celebrate the baby's safe arrival to commemorative mugs.
And Richard Cope, director of trends at market researchers Mintel, believes spending inspired by the young Prince will be sustained by visitors to the UK.
"Tourist numbers are up by about 10% compared with a year ago. They're going to be here throughout the summer and they buy into the concept of the Royal Family.
"The tourist factor is going to drag out spending for months and months."
But it is not just retailers enjoying the Royal feelgood factor.
William and Kate's chosen charities are already benefiting, including East Anglia's Children's Hospices (EACH), of which the Duchess is patron.
Melanie Chew, fundraising director of EACH, said: "The donations are coming in from the UK, but overseas as well.
"We have had all kinds of generous offers from an ornate handmade cradle from Poland, we've had children's bedroom furniture from Slovenia and we have a charm bracelet on its way, so it's been terrific."
Royal baby: Why George Alexander Louis?
By Finlo RohrerBBC News Magazine
A familiar name among British kings... George III, George V and George VI
George III, George V and George VI
The name George plays a part in British life in many ways
The Duke and Duchess of Cambridge's first baby has been named George Alexander Louis. But what's in the name?
It is a partial victory for the old maxim, "the bookmakers are never wrong". George was the rock-solid favourite for boys' names for a while, backed all the way down to 2/1. Alexander and Louis were both not far behind.
A cynic might point out that before we knew it was a boy, Alexandra - the Queen's first middle name - had been the favourite.
Of the three names, it is the significance of the third that is most obvious. Louis immediately makes one think of Louis Mountbatten, uncle of Prince Philip and last viceroy of India, who was killed by the IRA in a bomb attack on his yacht.
His father Prince Louis of Battenberg was Prince William's great-great-grandfather. Louis is also one of William's middle names. And, of course, the name of 17 kings of France (or 18 or 19, depending how you count).
If Louis honours one side of the Royal Family, George clearly resonates with the other.
Despite St George being the patron saint of England, it took the arrival of a German king,George I, to cement the name's place in England. Long a popular name in Germany, it has Greek roots.
There have since been five other Georges to sit on the throne. George III, king during the loss of the American colonies, is perhaps now best known for his mental illness thanks to Alan Bennett's play and the subsequent film adaptation.
His son George was a figure who certainly attracted more than his share of criticism. Arguably the best-known portrayal of him was by Hugh Laurie in the third series of Blackadder. In that comedy, he is a drunken, philandering fool of spectacularly limited grace and intelligence.
The real George was certainly both a drinker and womaniser who ate too much - the Times labelled him an "inveterate voluptuary" - but also an imaginative town planner, an ambitious patron of the arts and, most probably, not an idiot.
The most recent Georges reigned through two world wars. It was George V who declared war on Germany in 1914, pitting him against his first cousin, Kaiser Wilhelm II.
George V recognised the strength of anti-German feeling and changed the Royal Family's name from the House of Saxe-Coburg and Gotha to the more English sounding Windsor.
It was his son George VI whose struggles with his stutter are so movingly depicted in The King's Speech. Christened Albert and known to his family as Bertie, but crowned as George, he's a reminder that the monarch has the final say on their regnal name.
On the other hand, Alexander has never been the name of a king of England or the UK, but was borne by three kings of Scotland.
And yet for any parent naming their child Alexander, it must be hard not to hear the phrase "the Great" sotto voce immediately afterwards.
Alexander famously conquered much of the known world and is often described as the best general ever to live. But he was not a well-rounded individual. An epic binge drinker who once killed a friend with a spear in a drunken rage, he only made it to the age of 32 before either ill health or well-disguised murder did for him.
The two later rulers of Macedon called Alexander - one of them his son - were both murdered but that has not stopped the name being popular with rulers down the ages.
Perhaps the least successful Alexander was the sole Byzantine emperor to bear that name.
Of him, historian Viscount Norwich said: "The only good thing that can be said of the reign of the Emperor Alexander is that it was mercifully short."
This Alexander supposedly died after an ill-advised game of polo in very hot weather. Modern Alexanders might want to heed his example.
Royal baby: Cybersquatters descend on Prince George domains
26 July 2013
Cybersquatters have leapt at the chance to register domain names referring to the new royal baby, Prince George.
Within moments of the baby's name being announced, domains such as GeorgeAlexanderLouis.com and princegeorgecambridge.co.uk were taken.
Purchases of domain names mentioning the name "George" rose by 106.9%, reseller Names.co.uk said.
One buyer of a royal baby-related domain has put it up for sale at £10,000.
The owner, Matt James, snapped up hrhprincegeorgecambridge.co.uk on 24th July - the day of the naming announcement.
He told the BBC: "Like most British people, I was glued to the TV, excited about the birth and thought a baby Prince domain name had potential.
"If it does sell for £10,000, I will definitely give half to a charity associated with Will and Kate."
Between 22 and 25 July, Names.co.uk noted 413 individual domains that contained one or more of the words Royal, Baby, HRH, Prince, George, Alexander and or Louis.
Opportunistic buyers were busy snapping up royal baby-related names well before the prince was even born - the less-than-appealing name royalfoetus.com was bought in December last year.
Rainforest wrangles
Cybersquatting is a common concern for companies who are determined to protect their brand online.
Firms like Google go to great lengths to prevent embarrassment by buying up hundreds of domains like googlesucks.com - but also domains used to imitate brands for more malicious reasons, such as "phishing" scams which seek to trick users into thinking they are on a legitimate website.
Soon, Icann - the body responsible for overseeing the domain name system - will roll-out custom top level domains, paving the way for suffixes like .google and .apple as well as the more typical .com and .co.uk. The BBC has applied to have .bbc.
Companies have been invited to request ownership of domains which relate to trademarks they own.
The process has stirred some controversy, however - online shop Amazon has been denied the use of .amazon after a challenge from several Latin American companies.
They argued the domain should be used to reflect the rainforest region rather than the retail giant.
"'.amazon' is a geographic name that represents important territories of some of our countries which have relevant communities, with their own culture and identity directly connected with the name," said a letter from the countries.
"Beyond the specifics, this should also be understood as a matter of principle."
An Icann sub-committee agreed with this argument, but its decision is not final and can be overruled by the Icann board.
At the time of writing, .prince is still available as a suffix, however .george has been requested by Wal-Mart, presumably in relation to the clothing brand.
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