I recently picked up a Logitech Clicksmart 310 to upgrade from my ancient digital camera. I knew about the issues with linux compatibility but gave it a go. I have gotten it working in Mandrake 10 flawlessly. I went to this site and downloaded the experimental kernel module:
http://mxhaard.free.fr/download.html
I followed the instructions and just ran "make" and "make install" and it installed the module (I also had to modprobe the videodev but that was academic) I had already loaded genomeeting. Now with Mandrake's magicdev system, I plug in the camera and genomeeting pops up and I can use the webcam. I still am looking for a program to download pictures, but I konw now the camera does work. No tinkering, no fidling. It just loads fine. Unfortunately the utils on that site won't compile on mandrake. I'll look into that later. But it does work.