Thanks to all that responded. It was the fact that the 50 & 52 didn't appear to have the colored buttons that made me curious as to whether they were being used in carbon. I downloaded carbon last night. Looks pretty impressive. I think that when I go to the H3 I will stick with the harmony remote.I think the color shortcuts on a 40 remote will still work. The new 50 and 52 don't have those buttons. So, the shortcuts are still there but you will need the current 40 remote to use it.