Touch Diamond and Touch Pro. However, the capability is indeed present and exploited on video by HTC's own debug application. Even more interesting is the way that the handsets' entire front, capacitive surface (not just the 2.8-inch, 640 x 480 pixel display) can be used for multi-finger input. So like Dell's Latitude XT Tablet which launched multi-touch ready, expect to see future, multi-touch capabilities come to HTC's latest... someday. Click through for the vid.
[Thanks, Marios S.]