Not sure if it's a complete endorsement (I missed the beginning), but he's prasing him, calling him inclusive, ripping the McCain camp for Ayers, praising small towns, their view is "narrow" and "not what the American people are looking for"
So I'm not sure if he said "endorse" or "I will vote", but it's as clear as it can get.
Sorry if I can't write more now...
Just announced "I will be voting for Senator Obama"