GF2 Autofocus is GREAT FOR ACTION Photography
I have been testing the GF2 and I disagree with the suggestion that its Autofocus is not fast enough for action photography.
Autofocus is very fast/reliable in action photography. I shot a snowmobile race and most of my photos are sharply focused, even when shooting a long series of machines approaching the camera. See the album of some of my photos at https://picasaweb.google.com/pkburian/SnowmobileRaceMar262011#
Note: A couple of them were made with the EPL2 (as marked); that camera was not nearly as reliable in this type of photography.