I did the following:
- Plugg it in a free USB port.
- Set the "Input" of the sound preferences to use the Webcam's build in mic (called "0821 Analog Stereo" here) if you want to use that one.
- Install cheese to try it out (or use Skype/Empathy and call a friend)
- Set the cheese capture resolution to what you want (open the preferences for that). For pictures use a high resolution, for video use a lower one as the framerate will be very bad on the higher resolutions.
So it worked well so far out of the box. I hope the linux drivers improve further as I think the video capturing is a bit low on the framerate side. Noteworthy is that the framerate is higher in Skype than in Cheese, so maybe its just the software that needs to improve. I didn't try it with Empathy so far.