Is the s/w Windows 7 compatible? I see it runs on Vista.

From what I've read about Windows 7 it should work though untested systems often don't behave as they "should". To tell the truth I've been focussed on iPhone development since the release of Windows 7 and haven't installed it on any of my PCs. The software is a very small download (and free!) so I can only suggest you give it a try. Note that I've had reports of various cameras not working with the software. At this stage my own testing has only extended to Logitech and Microsoft webcams. There are PC apps which don't require a webcam though. I hope to get back to the PC side of things (I can do stuff there I certainly can't do on a mobile device yet) to give it a bit of attention sometime. For the moment though the iPhone stuff is paying the bills (well some of them anyway) and iPad is on its way. Strike while the iron is hot they say.