The IT will become more established over time. Our problem is that we often try seeing a newer version of the same devices in the future but don't understand or know what the future holds technology wise or fad-wise. It's hard to predict what is going to be the next big thing. Just search the internet a while and you might come across some of what is to come. I think the word tablet is a dated term. The future will be OLED (Nokia's looking into this)or something similar and devices will be much thinner and transformable. Dedicated cell phones will be uncessesary as people will be carrying around mobile devices with multiple communicative capabilities (including internet and phone more so than today).

It's easy to forget how at first cell phones made their way into common use. They were these big awkward things at first which were used by only select people (anyone remember Zack carrying around that huge one in 'Saved by the Bell'?). And eventually they transformed into what we know today and everyone and they're dog carries one (Wouldn't want Fido not to be able to call the sheriff if someone tries to break in while we're out of the house).

Anyway, the next gen tablet will be able to run much longer on a charge than today's mini-laptops thanks to the new processory functions. I'm not sure how far from Nvidia's Tegra line the OMAP's are, but the Nvidia chip for this sort of device which is supposed to be making it's way to next gen devices is supposed to be able to last over a day of use, not idle, but actual browsing, typing, presenting, etc.