Gamasutra reports that the PSP version of
The Force Unleashed II has been canceled, presumably over the mathematical concerns of attempting to profit off a user base of seventeen. Or maybe the port just blew? I don't know, but I'm guessing most of you weren't even aware that there was to be a PSP version.
All other versions of the game, which include Xbox 360, PlayStation 3, Nintendo DS, Wii and PC, remain on track for a Fall release. The sales of the original game suggest that something on the order of 7 million folks consider that to be an event of some magnitude.
Source: Gamasutra
Also, it was a port of the PS2 version, so without that version to scrounge off it's obviously not worth it.