I have just spoken with T-Mobile UK directly from my phone on 150, and they have informed me that the latest list of phones to be released and available from them on in the new year has been published today. The Nokia N900 is on it!!! The gentleman in the upgrades department told me to call back on the 10th of Jan 2010 and I can have a free early upgrade! I'll wait a few weeks then I think. Nice!