We do not have anymore details than you have read. Perhaps Andy will shed some light after he has recuperated from WordCamp SF.
In addition to that news, there was mention that WP.com will offer BuddyPress as well. So, as far as what this means for BuddyPress, your guess is as good as mine. Will BuddyPress be included as a simple “switch” to turn on? How about bbPress?
When will all this happen? The writer of that post speculates around WPv2.9. Who knows. Since this is such a major shift, to me it seems more like a version 3.0 event. But, this is also pure speculation.
Should I convert my wp sites into current wpmu setup or wait until they merge the codebase to start from there? I want to do something now instead to wait much longer to start the project without any hassles.
Very exciting times ahead!
@Jedbarish-
Should I convert my wp sites into current wpmu setup or wait until they merge the codebase to start from there?
I would wait to see what transpires.