I have a WAP enabled phone bt there is absolutely no way I could browse on a tiny screen or do anything meaningful on something of that size, even a pda or god forbid an iPhone ;D they are just too small. To me this seems more to do with the death of the PC and not windows or Linux. Unfortunately not having seen the video I can’t comment on its content, only what ws in the article.

As you say the possibility is so far away I doubt it will concern me either.