Source: http://www.forum-fourthirds.de/lumix-20mm-pancake.html (written in german)
GF1 body available in October
20mm lens early October
45mm lens early November
PREORDER NOW (AVAILABILITY IN OCTOBER!):
Both configuration are available for preorder at amazon US
Panasonic DMC-GF1K-K 12.1MP Micro Four-Thirds Interchangeable Lens Digital Camera with 14-45mm Lens
The Panasonic LUMIX G 20mm f/1.7 Aspherical Pancake Lens for Micro Four Thirds Interchangeable Lens Cameras and Panasonic 45mm f/2.8 Aspherical MEGA OIS Lens for Micro Four Thirds Interchangeable Lens Cameras are also available for preorder!