Depends what you mean. No, there will not be "official" support for MeeGo on the N900 (as far as I'm aware).

However, the N900 is the official development platform for MeeGo on ARM. Therefore; logic follows (and quim agreed in another thread) that all of the parts of the N900 should be working and released.

What that means is; making and receiving phone calls, getting a GPS lock, FM stuff, Battery, etc - should all work.

As far as what kind of software you should expect .. completely unknown at this point.

The GUI version, unless it's changed (I haven't seen anything contradicting it yet) - is supposed to be out this Month. No idea what it'll have on it though, but I'm anxiously awaiting it (more-so than the infamous PR1.2, actually).