Face Detection on iPhone (including source code)

This is the base for the face detection, in case you are wondering and don't want to dig through the code:<p><a href="http://opencv.willowgarage.com/wiki/FaceDetection" rel="nofollow">http://opencv.willowgarage.com/wiki/FaceDetection</a>

It's perhaps worth pointing out that this software is for detecting the presence of any old face, not for detecting a particular face, such as you or Osama Bin Laden.

Not that github should be the only location of open source, but does anybody else find themselves surprised when they come across code samples that don't use it?

I'm surprised they didn't include an option to specify how many faces you want it to detect before taking the picture.