Still a lot of RSNs to catch up on.
Actually, D* has almost all of the RSNs in HD, but at this time most are game only and spotbeamed to just the home market. I'm sure they will all be transitioned to national channels and made 24/7 soon-perhaps with the launch of D11.
The following RSNs are spotbeamed in HD by D*:
Altitude
FSN Arizona
FSN Florida
FSN North
FSN Northwest
FSN Ohio
FSN Rocky Mountain
FSN South
SportsSouth
SportsTime Ohio
Sun Sports