MAKE has a link to a guy who put one of the disposable CVS cameras to use with his RC plane.
Another link talks about adding Night vision as well.
In related news, a co-worker has just returned from the east coast with one of these in his pocket for yours truly.
I’ll have to see about coming up with something fun and interesting now.
Update: A small setback, is that the LCD was cracked. You can’t tell unless you angle it just right. It still works in the sense that it turns on, beeps appropriately, and plays back and you hear audio, just not the video. I’m assuming once I can download all will be well.