androidaccount.com

HTC has revised is shipment forecast for the G1. The company now expects to ship one million of the handsets by the end of 2008. This is up from the 600,000 that HTC previously forecast. While this number will be compared with the three million iPhone 3Gs sold in the first three days of availability, [...]

TmoNews is reporting that the White T-Mobile G1 is being delayed until after the Thanksgiving holiday. The delay is rumored to be due to paint chipping.
As for the other colors:

Bronze has been temporarily removed from my.tmobile, since it is sold out. Should return around November 24th.
Black is currently back ordered online, but available in some [...]