I'm considering getting some cheap airplay speakers for my bathroom, but I'm not sure they'll fulfill my needs. I know they'll stream audio from my iOS devices / iTunes library. Can I stream other audio to them via Airplay? e.g., iOS apps like Spotify, Pandora, etc? On the other hand, maybe it'd be best just to get a second iHome dock for the bathroom. I mainly just want to have audio available while I'm showering / getting ready for school / etc. Anyone have thoughts on the best way to solve this problem?