I think that people tend to think "devices" because that is the way the demo file is set up in the Editor.

If you think activities, as 8ate8 shows, you think through how you use the remote for whatever activity, and put those commands in the appropriate places, and name the activity as such, instead of by the device name.

The beauty of it, again as 8ate8 shows, is that all of the commands that you want the user to be able to access, are there and can be put right where you want them, and any you don't, can be hidden.

Watch - Listen - activities! And don't be scared to put the same command in different places.

Eg: DVD player: To listen to CDs, put the appropriate commands in the Listen section that apply to using it for music, and the appropriate commands in the Watch section for when you use it for watching video.

That way the user doesn't even need to see any of the video commands when listening to a CD, and vice versa.

IMHO!