So I apologize for not having read the whole thread, but if something like this has been posted...sorry.
I went to Gamestop a couple hours ago and talked to the guys there bout it and they pretty much said what RedOctance told them to say when they called them when people started complaining about the whammy problems.
The manager from Gamestop just called me (happens to be a family friend) and said that all major retailers only received the messed up model number, and that the good ones are actually released in areas outside of the US, but some areas did receive them. It turns out though, that it's a calibration issue with the software syncing with the guitar, so there should be a patch very soon to address the issue and everything should be fixed.
For a temporary fix, if you wiggle the whammy bar a bit before a song starts, it will calibrate it and you shouldn't have any problems.