Apple fans have spent days sleeping on the street waiting for the third iPad which goes on sale at 8am on Friday.A queue has already formed outside the flagship Apple store on London's Regent Street as people wait to snap up the gadget when it goes on sale.
Zohaib Ali, 21, of Uxbridge, who is the first in line after queuing for five days, said: "The iPad is the best product of the year and there won't be any more until 2013 so I am happy to queue. I love Apple products."
Mr Ali suffers from autism and his mother, Rahat Ali, believes that Apple products have helped him overcome his disability. She said: "Apple products are very good for autism. They are very easy to use and he is relaxed when he is using them. Usually he doesn't want to go out in a crowd but he is very happy queuing here."
The tablet computer, which has a higher resolution screen than previous models and a five megapixel camera with auto focus and auto exposure, ranges in price from £399 to £659.
Despite competition from cheaper rivals the iPad remains the most popular tablet computer. Apple has sold more than 55 million iPads since its launch in 2010, including 40 million last year.
Harry Barrington-Mountford, 22, of Upminster queued to buy the iPad 2 with his girlfriend Fenella Barnes, 30, and is now waiting for the newest model. He said: "We had such a great time queuing last time that we decided to do it again. People always stop to talk to us. I am exhausted though, I have only had about 45 minutes of sleep."
The new iPad also has "voice dictation" which allows people to dictate straight to their computer rather than type.
Apple said the "retina display" which uses 3.1 million pixels on the 9.7in display screen, would have "the highest resolution display ever on a mobile device". Another feature is a high-speed 4G wireless network which will allow users to download pictures and films quicker than before, but which is not available in the UK yet.
The computer is widely expected to sell out, but Nate Lanxon, editor of technology site Wired.co.uk, said some savvy shoppers would not spend their money yet. The iPad also goes on sale in nine other countries on Friday including the United States, Japan and Australia.