I am glad that it's patched in 2.2, ... well that's what i heard! Anyways' here's what I managed to pull off, a way to bypass the lock pattern of SGS that runs android 2.1 update 1!
Here's a video of it: http://www.youtube.com/watch?v=ApX8k3P255s
more blablabla here
I am not sure about the other versions! Maybe you can help out since all of you are owners of the SGS!