As I described in my last post, I've setup an Airport Express and a ceiling speaker to deliver music to my bathroom. This is cool technology, but after a week of it, it had the feeling of technology which was not going to become part of my daily routine. The major problem being that I had to remember to start the music playing from my MacBook before heading to the shower, and remember to shut it off afterwards. Several times, my wife made a special trip downstairs just to close the lid of my MacBook.
Then I realized this is just the sort of thing the Apple Remote app for iPhone is supposed to make easy, as I can control the music from wherever I might be in the house. And I further realized that I didn't have to leave my MacBook running all the time. The AppleTV in the living room is always on, contains my complete music collection, can be controlled by the Apple Remote app, and it can be told to send music to any AirTunes speakers on the network, including the Airport Express hooked to my bathroom speakers.
This has the major benefit of giving my wife equal control over the speakers as her iPhone can control the music as well as mine, and in a simple form her technological indifference won't mind.
So yeah, this seems right.