Obama will have to give a definitive answer to his plans for 2008. Otherwise, he's going to get
hounded to death. The rumors are really flying fast and furious.
I would guess his smart play would be to stay out, run for Illinois governor in 2010, and then look at the White House in 2012 or 2016.
I say he stays out unless Hillary decides not to run. If Hillary drops out (a very real possibility), we'll see a free-for-all on the Democratic side.