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Seems like that "ubiquitous integration [...] mix-n-match services" doesn't really work out in your envisioned future scenario, limited only to buying into Apple ecosystem ;p
(and generally, it might be a rather western perspective of things to come - so not really the most common one)
BTW, in a few short years we should see the next generation of consoles ...and actually, one present console maker seems to be much closer to that "ubiquitous integration" vision than anybody - Xbox360 works with any TV (not only Apple snap-on box + Apple TV), can stream media from a PC on home network (or even, IIRC, play contents of plugged-in iPod?), access many 3rd party services / streaming TV, and use various touchscreen devices (NOT limited to those with an MS OS: http://en.wikipedia.org/wiki/Xbox_SmartGlass ...working with any iOS or Android device one might already have) as a sort of remote, game/app controller, or 2nd screen showing stuff related to a TV show.
PS. You might keep that ZX81 around, but when was the last time you switched it on? ;p Edited 2012-08-28 09:56 UTC