I just released a new version of my png compression software for Mac OSX.
What's new? Not much. I changed the name from the incredibly lame PngOptimizer to PngThing and got a new icon courtesy FastIcon.com.
The file size is bigger than the old version (360kb) because of the new icon. Again, this release includes both Growl and non-Growl versions.
Special thanks to Kevin for suggesting the update.