I really wanted a simply program to show a series of pictures fullscreen on Mac OS X, and I couldn't find one. So, I hacked one together. It's really simple, and all the instructions are in the readme. This is a really alpha version, so there's still some miscellaneous crashes, and a lot of features that need to be added, but it's usable. I'm releasing this under the GPL, and I'll post the source here shortly; email me if you want it sooner.