I think tech reviewers always try to look what a device does, and ask it to do more.Really, nowadays, for almost any piece of technology that comes out, the only comment possible is "wow".It's beyond what we could have expected a few years ago, no matter what device we look at.
And no critic can get a living just saying "wow" to everything.So we will ask the devices to do the dishes for us.
The point in technology, imho, is what you get for that price.Nokia 770 has a screen bigger than any other device of the same price.And a full OS, not a "shrinked" version....an (almost) full browser..and, more than that, a bright future..

They say you cant do phone calls with it...I guess they have asked for the same thing to all the PDAs they've reviewed in the last years...who said this device should make phone calls?And for the same price?And for the same battery life?(which, btw, is far more than 3 hours...)

Hehe, my best tech advisor is my purse, i guess.