There has been a much-cited comparison with Lumix LX-5 (10 Megapixel, 1/1.6 sensor, F2 lens) which gives the nod in low light to the Nokia... However, in the test both cameras were at ISO 1600 but no mention was made of exposure time or of aperture settings. I would wait til all the information is in, though the Nokia does look promising.
The LX-5 is bulkier than most compact cameras but slips into a jacket pocket, and can let you get away with ISO 800 at 1/25seconds at F2 in say, a poorly lit beer garden at night.
I know there has been a blind test against an Olympus PEN E1 micro 4/3rds camera... this time for the zoom. No mention is made of the lens on the Olympus. The Nokia holds up very well, and was voted the best - though the
Olympus images are slightly sharper and better white-balanced.