Panasonic 42,5mm f/1.7 reviewed at SLRgear.

Panasonic f/1.7 vs f/1.2 lens size comparison (CameraSize).

SLRgear (Click here) tested the new Panasonic 42,5mm f/1.7 lens and writes:

With super sharp results, a small package and a low price point, what more can you want? For portrait shooters in the Micro Four Thirds mount, this is an excellent lens.

New Panasonic lens store links:
Panasonic 42.5mm f/1.7 POWER O.I.S. Lens at Amazon, BHphoto and Adorama.
Panasonic MACRO 30mm f/2.8 MEGA O.I.S. Lens at Amazon, BHphoto and Adorama.