Techsmith Jing: Free screen capturing and screencasting

I just found out about Techsmith’s new Jing project. Jing is a free screen capture program presumably based on Camtasia Studio. It does screenshots and screencasts, and appears to be written in .Net 3.0 – possibly WPF? (it requires .Net 3.0). I’m downloading it right now, so I’ll review it soon. And, oh yes, there’s a Mac OS X version, too. My guess is the Mac version is compiled with Mono.