Well, if today's batch of rumors are true, it looks like the PSP could be in for quite a few changes beyond the seemingly inevitable hardware revision. As Develop is now reporting, in addition to those rumored music downloads, the PSP could soon also be getting a full-fledged game rental service, which would, of course, be one more means of making a UMD-less PSP a more appealing device (for game developers and consumers alike). Apparently, the service was first pitched to developers at GDC
