A part of me is sorry to see Travis go, but my gut reaction is that this is a good deal.
In the short term, it gives the team some hope for a play-off berth. After all those years out in the wasteland, that is nothing to sneer at. It would also seem to imply that Roy really is due back soon.
In the long term? I see this not so much as a rental, as an audition. Camby is looking at a pay cut next summer. If he fits in well here, and can be re-signed to a reasonable deal, he gives the team a real insurance policy if everything with Oden and Joel doesn't turn out to be sunshine and butterflies. At least it buys the team a year or two to come up with a better option.
Then again, this story could all be BS.