Desire HD is a really powerful phone which features a 1GHz processor, 768MB of RAM, Android 2.2 with new Sense UI, 4.3 inch WVGA touchscreen display, HSPA, Wi-Fi, GPS, 8MP camera, and HD video recording.
T-Mobile UK is also carrying the HTC Desire HD, and they will launch it next month. I think that other UK carriers will pick the Desire HD or Z soon, because both phones are specially made for UK and Asian market, and I am sure that Vodafone UK will announce it soon !