http://www.dpreview.com/news/0909/09091501olyep1firmware.asp

"Olympus has released a firmware update for its E-P1 Micro Four Thirds camera. Version 1.1 improves the camera operation in Continuous AF mode (C-AF). The company has also posted firmware updates for the E-P1's kit lenses: the M. Zuiko Digital ED 14-42mm 1:3.5-5.6 and the M. Zuiko Digital 17mm 1:2.8 pancake lens. The updates promise to improve the autofocus operation of both the lenses. Firmware updates can be downloaded via the Olympus Master/Studio software."