Thanks for your help, but you only dealt with music, not playing in my media room and listening to music in the other rooms. I am surprised that one of the big makers of receivers don't possess this ability.
Check again, if you research the ZP90 and what it does, I dealt with all of it....
- Purchase a ZP90 for your media room and plug it into your receiver. It's wireless so it will also stream music into your media room.
- The amp will handle 6 pair of speakers and allow for separate sources for each. So, just plug a ZP90 into each input on the amp for the individual rooms. The Sonos app/software has you name each ZP90 as a room which allows you to select the zone and what it's going to play.
If you have XYZ number of rooms you want different control and music in.... you need XYZ number of ZP90. Add a multichannel amplifier (this one is perfect:
http://www.parts-express.com/pe/showdetl.cfm?Partnumber=300-815) and plug a Sonos Zone Bridge into your router, add the app, sync them up and you're done.
- Each of the ZP90 has a line in. So you can run a cable/sat box, CD player, etc. into however many different ZP90s you have and stream them all together, from room to room, or whatever you'd like. All from your Droid.
- Receiver manufacturers are just now starting to add Droid/Iphone control with a little bit of internet radio, rhapsody, etc. But nothing that does multiple rooms with streaming and control like what you asked for. Reason: Those systems already exist as there are a great many whole house audio systems already flooding the market.
A receiver for whole house audio is NOT for people looking for features or control. It's for people looking to hit as low a cost as possible while getting some sort of sound around the house. We've used the Sonos based system I have loosely laid out for you in anything from basic 1 source, multi zone houses on volume controls, to huge 9,000 square foot estate level homes with individual control in every room, to large country clubs. It's an amazing product and will do everything you asked about and more. There is not a lower cost, more easily integrated alternative or a better product for what you asked for. Nor do I see one on the horizon (meaning... years away if at all).
*** EDIT: If you're wanting to control your receiver or other electronics with a droid I can tell you Pioneer offers Iphone/Touch/Pad control, but just over their receiver and BluRay players. Most automation and control apps right now are more Apple friendly than Droid. More droid stuff is coming, though. Those pieces of software require quite a commitment to be able to program and some external hardware.