Girls pose during a photocall to promote the Big Royal Wedding Sleepover at “Camp Royale” on Clapham Common on March 8, 2011 in London, England. The “Pop Up” campsite will cater for up to 10,500 people between April 28 and May 1 to coincide with the weekend of the Royal Wedding on April 29. (Photo by Dan Kitwood/Getty Images). LONDON, ENGLAND – MARCH 08 2011

Customers try out the the new iPad2 shortly after it went on sale at the Fifth Avenue Apple store March 11, 2011 in New York City. The iPad 2 became available at 4:00 a.m. Eastern time for online purchase and at 5:00 p.m. today in over 10,000 retail locations.

Masaaki Nagumo controls the Land Walker robot at Sakakibara Kikai Co., Ltd Headquarters on May 12, 2005 in Maebashi, Japan. The two legged robot stands at 3.4 metres high and weighs 1000kg. The Land Walker is available to buy for 36,000,000 yen (approximately US $340,000). Masaaki Nagumo developed Land Walker on the basis of the dream he has had in his childhood that enables a person to go on. (Photo by Koichi Kamoshida/Getty Images)

Christina Careaga (R) and Hannah Thielmann kiss as they celebrate during the Gay Pride parade on June 26, 2011 in New York City. The parade took on extra significance following Friday night's legalization of same-s*x marriage in New York, often regarded as the birthplace of the gay rights movement. (Photo by Mario Tama/Getty Images)

Sydneysiders walk amongst tar figures placed in the CBD to raise awareness about the damage smoking causes to the body at Martin Place on June 30, 2011 in Sydney, Australia. Each of the tar figures represent the profile of smokers, from the casual weekend smoker to the one with a lifelong addiction. (Photo by Lisa Maree Williams/Getty Images)

Festival goers celebrate during the Chupinazo, marking the beginning of the San Fermin festival on July 6, 2011 in Pamplona, Spain. Pamplona's famous Fiesta de San Fermin, which involves the running of the bulls through the historic heart of Pamplona for eight days starting July 7th, was made famous by the 1926 novel of U.S. writer Ernest Hemmingway called “The Sun Also Rises”. (Photo by Denis Doyle/Getty Images)

A fighting bull loses its balance during the third day of the San Fermin running-of-the-bulls on July 8, 2011 in Pamplona, Spain. Pamplona's famous Fiesta de San Fermin, which involves the running of the bulls through the historic heart of Pamplona for eight days starting July 7th, was made famous by the 1926 novel of U.S. writer Ernest Hemmingway called “The Sun Also Rises”. (Photo by Denis Doyle/Getty Images)

An Israeli soldier salutes as she attends a military cemetery ahead of the start of Remembrance Day at the graves of killed comrades on May 8, 2011 in Jerusalem, Israel. The 64th anniversary of the creation of Israel in 1948 has fallen on the Monday as determined by the Hebrew calendar and is preceded by the annual memorial recognising Israel's fallen soldiers. (Photo by Uriel Sinai/Getty Images)