Bush's New-found Bi-partisanship

Recently, President Bush has made several statements indicating a hope that he can work together with the newly democratic Congress. The optimistic could perhaps believe this marks a return to the 'uniter, not a divider' rhetoric we heard early on, and perhaps even actions matching the rhetoric. Most of the pessimistic people I've heard commenting on this suggest that Bush is as serious now about bi-partisanship as he was at the beginning of his term (which is to say, not very). But doesn't this just reflect that, with a Congress opposed to him, and largely elected on 'not-Bush' grounds, he has to try and use this rhetoric to get any part of his agenda passed? That is, he really means it, but only because he has to?