I'm quite amazed how quickly ITV have adopted HD this year... very late in the day compared with the US and Oz but we are getting there slowly
I presume it is because they now have a presence on Sky, there wasn't a huge amount of point when they were on the red button for the few Freesat HD viewers they had, plus the soon to launch presence on Freeview HD. Now, more than a few months ago, is the time to start ramping up HD content, and giving the Beeb the kick up the backside it needs to speed up its HD offerings.
Never really been keen on the GMTV name, possibly due to the fond memories I have of TV-AM, so a fresh start is a good idea. They never really recovered from the phone-in scandal, so a clean break would probably make more sense, and give the stale offerings on UK breakfast TV a much needed revamp, especially if they go all out for promoting it, which they inevitably will. Maybe, just maybe, this, in effect, new breakfast show will offer Breakfast some competition and a new audience (especially those from The Big Breakfast generation).