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All shortcomings aside with the Ipad... It is designed for the masses. It's slick 'to them' and will sell like crazy. Your average person doesn't care how it works just as long as it works.
And in reality Apple is truly gearing up to sell a lot of TV shows over the Ipad... It will be a new TV watching experience.
This occurred to me last night when I was eating and typing one handed on my laptop whilst driving down the highway. (OK Not really)
An "@" key would be nice. we use it dozens of times per day and more than most of the letters on the keyboard and certainly more than all the punctuation. It's a needed key - why not put it on and get rid of the need to hold shift down to do so.