I didn't mean to imply that I thought the USPTO got this wrong according to their examination process. I didn't mean "obvious" in a legal sense, as in an articulable relation to identifiable prior art. I was speaking more in lay terms, as in this is yet another fscking absurd result of allowing patents on software.
I'm not very adept at analyzing patent claims; e.g. means-plus-function and anticipation, both of which I would guess were fairly critical to this case.