I get that, but it still has a clunky inelegant air about it. That is most definitely not Apple-like. I can't throw the iSlate down on my desk like I do a pad. I can't leave the iSlate on the edge of a server in the rack and knock it to the floor accidentally like I do a paper pad. I most likely won't be able to hold on to the much heavier iSlate for long periods of time like I can a pad. Does a paper note pad really need to be computerized?
Why do you think Apple wouldn't apply their notorious high margins (aka Apple Tax) to netbooks and a mid-range tower? A $700 10-11" netbook and a $1400 mid range tower would both be profitable and popular. I'd buy the tower for sure, but will not spend almost $2700 on a MacPro. Again different needs.
Almost everyone agrees Macs are better than PCs but Mac market share continues to be a blip. Their very limited product range is a huge reason for that.
Of course market share is not a valid measure of success of a company. Profit is. Cash on hand is. Apple has loads of both. Yes I too wonder why they do not have a mid line tower. My guess is that it violates their design ethos of minimalism and quality. They don't want too many models like they had in the early 90s. They don't want to sell junk computers. I say this typing on my 6 year old rev A 867MHz 12" Powerbook running Leopard. It just won't quit.