Its good to hear these rumors about HD, but like everyone else here I've heard it all before, especially the one on DS where Jane claims she spoke to a VM-CS person "who told her we'd be getting X, Y and Z HD channels".
Ten of us could ring up CS now and post back ten differing responses from, "there will be no new HD channels ever" to "I guarantee half a dozen new HD channels in the next few weeks".
I'd love to be proved wrong on this but past experience doesn't fill me with confidence.