If it uses a sensor similar to the one in the K20D, I want one... and a nice compact wide zoom to complement a K20D+tele.
Like m4/3 and the G1, the concept is sound, but the execution really isn't there yet, imo. I like the shape and size (and sensor) of this better than the G1, but the control layout looks like a pain and those zoom lenses displayed don't exactly look compact (though I feel like I may be being decieved by the lenshoods). Being able to use legacy lenses (on adaptors) with a 1.5x rather than 2x crop is a plus as well.
Of course, a lot remains to be seen, so I'm reserving my opinions for when it is.