Adobe’s AIR technology is an interesting idea, it allows you to develop desktop applications with existing technologies like HTML, Ajax and Flash.

You download and install AIR, and grab different modules to run as standalone apps.
I’m currently beta testing the Google Analytics version (pictured above), which is quite close to going to v1.0.
First impressions, it almost replicates the GA environment, and the development being made is promising, something to keep a close eye on.