Nokia said that there will be no commercial release of Meego. However Nokia is using the N900 to test and adapt Meego to ARM devices. This means that Meego will work on N900 with all the drivers and everything.

I'm sure thata good version of Meego will be released for the N900. I don't think it will be by Nokia, but Nokia will share it with a community that aims to release Meego to the N900. The thing about no commercial release is that you can not expect any updates or support from Nokia. Not for the N900/Meego combination anyway. However there will be support by the community.