Sony has announced an iPhone version of Ghostbusters, which will be out in June. Link: http://www.electricpig.co.uk/2009/03/30/ghostbusters-iphone-game-announced/ PS: the news was written on March 30, so it hopefully isn't an april fools' joke.
I'll probably get it for my 360 after looking at the trailers (hey, it was $300, I have to play it a little). Given the sheer size of Sony, someone in there should come up with a decent control scheme. Then again, they did screw up Spider-Man 3 Nabbing ghosts to the GB theme song, now that's awesome. And Bill Murray FTW!
I hope they make good use of the touch and accelerometer for controls (ie tilt to aim your stream or touch to slide the trap across the floor).
I don't want to be a pessimist (or however it's spelled) but I don't think this is going to turn out well. The whole idea of a Ghost Busters game sounds stupid and I think Sony will make it even worse.