The English Language Panasonic DMC-G1 user manual / operating instructions is now online and available for download at Panasonic.com (PDF link).
The 168-page Panasonic G1 Adobe Acrobat PDF document weighs in at 48.3 MB (megabytes).
The guide discusses the features of the G1 and how to use the camera.
It also describes the use of, and camera settings for several optional accessories. The page references are:
Page 128: Using the Panasonic DMW-FL360 External Flash (GN36).
If you plan on doing lots of flash-illuminated photography, and based on the user reviews of the DMW-FL360, it would probably be a better idea to purchase the higher-powered Panasonic DMW-FL500 TTL External Flash which has a guide number of 50.
Page 130: Using filters — the Panasonic DMW-LMC52 52mm Protection Filter, Panasonic DMW-LND52 Light Control ND8 Filter and Panasonic DMW-LPL52 52mm Polarizer Filter.
Page 131: Using the Panasonic DMW-RSL1 remote shutter / cable release.
Read Panasonic G1 Remote Shutter Release Solutions for more ideas on remote control options.
Related
Panasonic G1 — Main page