The T-Mobile MDA Compact IV was just officially announced yesterday and now we already have a video walk through of the device. You'll notice that not much has changed on HTC's TouchFLO 3d interface except for the colors. T-Mobile UK is planning on launching the MBA Compact IV in early July.

The HTC Touch Diamond release date is set for June along with price of $772, for those not planning on picking the diamond up from their local carrier.