Now that I've sorta figured out what I think, other takes on today's decisions:
Like Gaul—or, more the the point, gall—the detainee mess is divided into three parts. One division is the obvious one: Hamdi (PDF, 822kb), Padilla (PDF, 517kb), and Rasul (PDF, 520kb). That's certainly the way the three decisions will be divided in the media. However, there is a much more logical and important division into three parts: civil procedure, government power, and military necessity. Just to be different, that's how I'm dividing things. I also think it gives some interesting perspectives on exactly what was going on.
Lots at SCOTUS Blog
Greg Goelzhauser, Did Congress authorize indefinite detention?
What happens to Hamdi himself — and what sort of rules exist for future cases of this sort — will now be heavily dependent on what kind of procedure is implemented below. Four members of the Court explicitly left the door open to military tribunals (see p. 31), and Thomas could probably be relied upon to provide a fifth vote. But the government is on notice that four members of the Court — and possibly more, depending on the views of those who joined O'Connor's opinion — are not going to be deferential.
Legal Theory Blog has a round-up of the votes and other comments.
Update: Read Balkin