John Hawks blogs that the much-publicized examination of the Kennewick bones by scientists involes a lot less new science than appearances would suggest. The common perception (I've bought in, too) has been that no one has looked at these bones since the legal dispute blew up. In fact, Hawks links to a government-maintained data page summarizing extensive work already done on the remains. The current, publicized study appears to be mainly cross-checking.
Read his post to find out his take on what's going on.