The Freeview HD mux launched in london on 3 Dec from Crystal Palace (ch31) joining lancashire's Winter Hill service. Crystal Palace's service is an additional mux, retaining the existing configuration of channels on the existing muxes until switchover. The HD mux is also at a lower power (10kW) to avoid reception problems with Sandy Heath.
Now all we need is the kit to recieve it on !!!
http://www.ukfree.tv/fullstory.php?storyid=1107051641