T-Mobile

According to mobileburn.com, The Nokia 6650 should be available now from T-Mobile UK.
Nokia 6650, a stylish and easy to use device optimized for use with T-Mobile services. Available exclusively for T-Mobile International customers, the Nokia 6650 is equipped with the latest wireless features, such as an integrated GPS and multimedia player, allowing T-Mobile customers easy [...]

Nokia and T-Mobile has launched the new Nokia 6650 as Nokia’s very first 3G phone, earlier this year at the 2008 CeBIT show in Hannover, Germany. This version of the 6650 appears to have little in common with the original, sporting instead a rather Motorola RAZR like design and metal exterior.
The stylish, brushed-metal fold design [...]