*sigh* ok
From what I understand the BlackBerry Bold is going to be running a 624Mhz proc. And as Matt mentioned, the BBC client usually show sup a little after the release. However, as the original Touch is out (or soon to be), I'm not sure how different the HD version will be that it can't run the existing BBC app when it does launch.
edit: beyond that, the HTC Devices are windows mobile 6.1 devices at heart and as the BBC client already runs on WM6.1, i'm assuming you can get it to work albeit without support. However, as I do not have a WM6.1 device, I can't verify if that is the case or not.