I have not heard of anything other than what is being published by Motorola, which is this quarter (April to June). Regarding T-Mobile, afaik, they have not released it for the UK as yet, most articles are relating to 2.2 being available in the US. It is being rolled out gradually world-wide.
Vodafone do have a history of being slow in modifying and approving firmware though....have you hassled them in the Vodafone website forums?