From all the reports and side info, the Diamond is a Sprint device. .. :/ but with this leaked video and press release its lookin like the Diamond, oh excuse me the T-Mobile MDA Compact IV will in fact be on its way in a few comin months.. .? (more like lets jus keep our fingers crossed, or i know will)
T-Mobile MDA Compact IV
"Less than 24 hours after HTC revealed the Touch Diamond to the world, T-Mobile UK has taken the cover off of their customized rendition of the Diamond. As expected T-Moble continues their naming legacy of HTC devices and has dubbed the Touch Diamond the MDA Compact IV. Even though we just reported that the Diamond would be relesed in June for European markets, T-Mobile UK has chosen to wait a few more weeks and launch the MDA Compact IV in July instead.
The MDA Compact IV seems to have recevied T-Mobile's signature majenta and white makover on HTC's TouchFLO 3D interface. This gives us hope that we will be able to customize the device's interface colors to our own liking since HTC has done suck a good job at covering up WM6.1
T-Mobile will be offering the Diamond for free to customers who opt for new select service plans. T-Mobile is the first UK service provider to announce their version of the Touch Diamond." ~from HTC Source.com