I'm betting that the n900 number is not favorable enough to be broadcasted by Nokia at this point, which is the main reason that we're seeing a lack of information on that end. They see broadcasting it to have a more negative effect than positive for nokia/maemo/meego.

If that is not the case, then two possibilities which are just as bad:
1. Nokia is unintentionally missing a big opportunity to toot their own horn and get good publicity out if it.
2. Nokia is intentionally being stoic with this, probably afraid of N900's success with what's considered a half-baked OS. (well ok, three quarter).