What is particularly nice is that you don't need a special camera of any sort, as long as you can lock the focus and do a 'bulb' exposure, any camera will work for stop motion.. The key is the flash is your 'shutter'.
I am trying to build a high power LED strobe for macro stopmotion and other effects.. Arduino makes this kind of thing easy enough to do over a weekend. I've also used Arduino as an automatic bracketing timer for HDR exposures.
Arduino and cameras.. A match made in geek heaven...