Now that you mention it John I just remembered that the iPad app was announced a few days before I ordered my Sooloos. Right after ordering my Sooloos I went right out and bought an iPad mostly because of the Sooloos app.
Also note: the app does look a little different on an iPod/iPhone even though it's the same app. Some people like the app better on the smaller device. I have both and I like it better on the iPad.
I have my Sooloos hooked up to my bedroom system. I listen to it every night as I go to sleep, usually listening to audio plays. If I wakeup in the middle of the night I turn back on a short playlist to go back to sleep to. In my bedroom I like the iPod better as a remote because it's not as bright and is less annoying to use in a dark bedroom when trying to sleep.
So much music, so little time.