I don't think it would suit everyone but I think it is a great bit of tech.
I think we're clutching at straws when it comes down to quoting battery life. I can't remember the last time I was constantly away from a power socket for 10 hours whilst doing nothing but consuming films or web surfing plus many Netbooks can give great battery life.
As for not suiting everyone, personally I think I would sob each time I used it at the thought of how much I had paid for it. Then I would get mad at myself for being such an idiot and getting sucked in by all the hyperbole. I think this would be followed by self-flagellation.