4Seven HD is coming to VM, no word on Channel 4 +1 HD yet.
These channels were initially Freeview exclusives in order to help fill the two temporary HD muxes and to drive take up of Freeview HD boxes, so this must have now come to an end.
I imagine that if it's coming to cable that it will also be added to Freesat
All good for channel parity between Freeview and Freesat.