Looks like the Ghostbusters are heading to PSP, if this ESRB listing is to be believed. According to the ratings bureau, the PSP will receive its own version of Ghostbusters, based on the PS2 and Wii versions of the game. The game has been announced for pretty much every platform including the DS and iPhone, so it's unsurprising that Atari would want to make a quick buck by releasing a PSP port as well.