Does anybody really think Nokia plans on having the vast majority of its phones running Symbian in 2012? I sure don't. They're not buying QT and throwing their money at maemo for nothing. By 2012 the kind of processing power in the N900 will be mainstream. With cycles that cheap, the traditional phone OSes are going to be pointless. Look at how many features even dumbphones have now. In two+ years, people are going to be expecting real computer functionality from their "phones", and with good reason. Everything smaller than full-sized keyboard will be displaced by "smart phones", just like PDAs have been already.

N900 isn't the finished product. It's a rung in the ladder for Nokia to be on top when the portable computer convergence roller coaster really begins.