That's not generally true. What i meant saying that OMAP is no x86 is that Intel has generated this false idea that running a processor at high frequency _has_ to turn it into a small stove. Of course there are heat problems, but certain architectures are much better suited than others to deal with them. OMAP3 for example is highly partitioned and provides a good granularity for switching off or at least keeping in clock stop mode those modules that are not actively used.

Well, unless olographic displays or head-mounted displays become common, a large screen is still necessary to comfortably browse the net. Same goes for the keyboard. It can be done, but then the definition of internet tablet would hardly apply.