Bought this less then 2 weeks ago. In the meantime it has been 'jail-breaked' to allow root access and has had the firmware updated to a modified RC8 firmware.
I called T-mobile and had them send me the unlock code for £15.
Root access basically means you can run unsigned code on it and access some of the system settings that Google locked down. I only use the 'task manager' function which lets you force close applications that may be hogging system memory or failed to load.
It has a small scratch on top that you can't really see in the pictures but looks like it may have been dropped at some stage. The original screen protector was on the phone when I got it and all i've done is remove it and replace it with a proper screen protector.
Comes boxed with original accessories including 2gb micro sd card, earphones, charger and G1 phone cover.
Will post some basic pics shortly and more pics will come upon request. Not looking to negotiate on the price as I think this is a good price for this phone. If this doesn't sell by Tuesday then it's going on ebay.
Will send Special Royal mail 1pm and the asking price includes postage.
Payment is to be made via BT or paypal + fees. Will not accept paypal gift.