@igorgue: Not trying to predict the future just stating how long it would take to catch up to present products/platforms based on how long it took Apple to create them. The nature of this question was speculative and I was basing it on some current present facts. I don't know for sure but that is the way it seems, this whole topic is about predicting the future.
So you don't think handheld devices like the iPod Touch, DS, PSP will be around in the future? iPad aside if you don't think people will use larger screen flat devices in the future.
I thought we were having a discussion not just joining the religion of 'I don't know', how fun is that? Ok then the probability of people carrying personal media, creative, entertainment, gaming devices is probably going to go up rather than down. But I don't know for sure...