...Speculation: There are a couple of signs that may be pointing towards a late 2010 announcement: Sony and Samsung are more aggressive on pricing and that has left the upper tier M43rds cameras with higher prices (GF1, G2, GH, E-P2) yet slightly smaller sensors. Plus, last weekend there was a "price experiment" on the GF1 with the 20mm pancake lens down to $600. We saw these "price experiments" earlier in the year for the GH1. A GF2 announcement could allow the GF1 price to drop at/below the NEX/NX level....
Interestingly, nearly all of my local camera stores (Oz) are out of stock of the GF1. Makes me think there might be something in the wind, although I guess it could just be demand as the Christmas season approaches.
Here's a slightly different take via Noisy Cameras from October 29th: Rumor: Panasonic GF2 coming soon? - 1001 Noisy Cameras They bill it as a "soft rumor"
So what do you all want to see as part of this new GF2?