Bush announced he wants to increase the number of troops in the army and marines over the long term. This is a smart move on his part and clearly paves the way for his surge proposal.
I think it's a very bad idea because more troops allow the president to get us into more situations like Iraq when we should at least be relying on UN actions. It does somewhat address the problem of troops having to extend their stay in Iraq so it will have public support.
The bright side is that this gives the Democrats a way to prove they are in support of the troops if they should decide to cut funding for Iraq. In that case I think the trade off would be worth it and the "more troops in the long term" decision will backfire on Bush.