This posting is older than 6 months and can contain outdated information.
Felix, from you review of the new 7 button Apple remote:
"But it comes at a price: hardly any current Universal Remote will be able to correctly learn and emulate the new codes. I fully expect that, instead, they'll just record and replay the raw IR signal of the new buttons. The effect of this will be that one button press on the Universal Remote will be translated into several raw replays of the new AppleŽ Remote codes. Or, in other words: one button press on the Universal Remote will act like multiple button presses, because that's what'll be sent."
I'm in the process of starting over on my remote setup and would like to utilize the new remote if possible with my Harmony 550 (just to reduce the number of virtual remotes needed) but doubt it's compatible. I've googled and haven't come up with anything on what remotes are compatible as you mention above. Do you happen to know the list?