For me, the question is now whether to cancel my GR pre-order. It's not like I can't buy one down the road if firmware updates make a big difference. Right now, I am leaning strongly in this direction, especially since some unexpected expenses came up this week. And it's not like I can't get decent low-light results with my E-PM2 - or even my GX1 - with the 20mm f/1.7 or 14mm f/2.5. Not as compact as the GR, of course, but workable.
Same here only I don't have an alternate choice as a compact.