UDPATED: New Olympus firmware next week. It will improve the autofocus on each PEN camera.

Good news Olympus folks! On April 22 Olympus will release a new firmware update for your PEN camera.

Read the press release:

Auto Focus Performance
This update will improve camera AF performance when shooting both stills and videos with the E-P1, E-P2 and E-PL1 cameras when using any Micro Four Thirds or Four Thirds lens. Auto Focus Lock time when shooting stills is improved by 15%. Auto Focus tracking accuracy when shooting movies is also improved.

Viewfinder/LCD Simultaneous Playback Function
This upgrade also brings additional display functionality to the E-P2 and E-PL1 cameras when fitted with the VF-2 Electronic Viewfinder. Photographers using these combinations can now view menu and recorded images on the LCD while the VF-2 Electronic Viewfinder is in use.

Movie-Still-Compatible (MSC) Lens Compatibility
This update also ensures that like the E-PL1, the E-P1 and E-P2 camera models are fully compatible with and able to take advantage of two recently announced and soon-to-reach market lenses; the M. Zuiko Digital™ ED 9–18mm F4.0–5.6 and M. Zuiko Digital ED 14–150mm F4.0–5.6 lenses. Olympus is designating these two lenses as MSC, or Movie-Still-Compatible. They are optimized for shooting high definition video with accurate and silent autofocus.

source: OlympusAmerica

UPDATE:
Tthe new Olympus Viewer 2 software that replaces Master 2 & Studio 2 is also availble!
Olympus Australia has the PDF Full Press Release on both the software & firmware updates.