Nonsense ! Maemo 5 will be alive well after a couple of Symbian^4 phones are out. That is at least 2 years from now.

Why don't you read what Nokia has publicly stated instead of making up wild dreams? Symbian^4 will be THE OS for Nokia smartphones. Maemo will be THE OS for Nokia mobile computers. These two OS'es will converge GUI vise and application vise, but not regarding core OS. The reason is simply that Symbian is a much better core OS for phones than Linux ever will be.

Symbian enables Nokia to make smartphones that cost less than when using any other OS because Symbian can be run on less powerfull hardware with equal performance (with some added HW graphics). Nokia has been doing this for years already.

Maemo enables Nokia to make "high end" mobile computers that is easely ported to any hardware platform.

There is no confict between Symbian and Maemo.