I gave it a quick test, it worked on my Linux and on my Windows XP. The built in microphone is nice, but it would have been better to be able to disable the microphone from the cam's Control Panel.
It was easy to fit it on my laptop's monitor, as you can see in the pictures. The back part, or the tail, can be bent to adjust it to fit any monitor. The webcam also came with a base enabling it to sit on desk.
The picture quality is good, it has a dark setting that will brighten the picture; nice...
I tried it on MSN messenger, but the microphone didn't work, I think I need to change the MSN settings. Then I tried it on Skype, it worked great.