One camera that's putting out good reviews on the Micro Four Thirds side is the new Olympus OM-D E-M5 (see it here on Amazon). A nice upgrade for PEN shooters. The in camera stabilization is a big plus for people who want to use older or aftermarket lenses. If you're looking to get one sooner than later, there's one OM-D (Black) with 14-42mm available for normal retail price via eBay, but ends in 50 minutes. Find it here.
Olympus OM-D E-M5 Black with 14-42mm Lens
[Update] If you missed it, you might be able to find a few here: Olympus OM-D E-M5 16MP Live MOS Interchangeable Lens Camera with 3.0-Inch Tilting OLED Touchscreen and 14-42mm Lens (Black)
JP
The IS doesn't work with manual lenses in video mode, I'm not sure it even works in photo mode (needs proprietary lenses or a special adapter for older Olympus lens with chip confirmation)..looks nice, but not what I was expecting..
Matthew
Too bad the MK4 doesn't have in camera IS. Vintage lenses would really shine on a full frame sensor with that feature. On the M5 a modern super wide angle lens is still a necessity. Any old lens under 24mm is overpriced and usually fisheye.
Emm
Post author@imgpro615 - I'm a fan of the Sony NEX-7, but Olympus has one up on Sony with the in-camera stabilization. I find it hard to keep steady on the small Sony body and none of the lenses I have use IS. I'm using older Canon and Nikon lenses.
imgpro615
i own an OM-1 and an OM-10 with manual adapter...great sturdy compact SLRs...if I go for a mirrorless micro 4/3 I think this would be the one...though i am liking the sony offerings as well...