There's only one problem with that, as much as I would like to see it. Obama's trying to be a good and honest politician, and is largely holding to the 'politics stop at the water's edge' mentality - which is why I'm looking forward to him coming home and putting McCain in his place.
One thought from my husband on why he's not attacked McCain more clearly yet - he needs to wait for the hardest hits for AFTER the Repub convention, when McCain is formally the nominee. Not sure I buy that, but there's something to be said for letting the gaffes mount up and not waste the attacks so early.