Fascinating. These are precisely the three cameras on my list.
I currently own the S95 and am a bit disappointed, to be honest. I feel like I need the step up to a micro 4/3rds, but have been waiting for the GF2 to hit our shores, either for a price drop on the GF1 or for a reason to cop the latest model.
How does the touchscreen strike you? It's been getting a lot of bad rap from the "real" photographers, but all as a matter of speculation, of course.