It's not the move from 32 to 64 bit that's going to be the biggest issues for developers. Our biggest problem will be learning parallel processing to take advantage of the multi-core CPUs.

>I'ld say about 10 years from Win95 to XP64. Also dropping Win32 just for the heck of it doesn't seem plausible: I don't think 128 bit machines will arrive in 8 years, as the gains are getting smaller. And a totally new OS working from a different code base running from Handhelds to cluster servers ? Don't think so...
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>regards
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>thomas