I think part of the problem is that nobody knows quite what a tablet is supposed to <i>do</i>. Is it just for web browsing (CrunchPad)? Is it for basic web, email and office (iPad)? Is it for everything that a laptop does (Windows tablets)? Once you have a scope/audience, then you can design a suitable UI.<p>Apple is attempting to take the lead here, defining what a tablet should and should not do. If it works out, then I suspect other tablet manufacturers will follow suit and create devices with similar scope to the iPad. If it doesn't then it's back to the drawing board.