Got my G1 in the US last week.

Unlocked via these guys: www.unlock-tmobileg1.com

Working on the Fido network in Canada, but only on the 2G network.

OTA updates - I got the RC29 Android update OTA to my surprise!

Lovin it!

Google G1 Phone + unlocked + Fido - Canada - vichong.com from Vic Hong on Vimeo.

Update on Sunday, November 9, 2008 at 9:03AM by Victor Hong

RC30 update OTA happened yesterday!

Update on Monday, November 24, 2008 at 12:04PM by Victor Hong

Another write up on unlocked upgrades on Ars Technica:

http://arstechnica.com/journals/linux.ars/2008/11/11/unlocked-g1-phones-still-upgrade-compatible