interesting discussion.
i have a laptop, pc, ps3, wii, archos 605 and nokia 900. i'm not giving it the large one about having all this stuff, my point is all these items can perform similar tasks - but some do them much better than others. each one still has a usp for me and i use all regularly (apart from the wii).
i think there will be a time when the pc, laptop and console are merged and wont exist as seperate entities (for the mass markets) - but not for a while. 10 - 15 years is my estimate.