Update #2: Panasonic GF2 will be available in Japan on December 3rd (source).
Update: another Amazon UK entry lists the GF2 at £599.
Panasonic usually reveals their pricing 30 days before the camera is released for sale, but according to Amazon UK, the Panasonic GF2 will cost £729.99 and will be released on January 24, 2011:
FYI: Panasonic GF1 currently sells for almost half price (£404).