There are other similar solutions out there ... granted not found in the Apple stores.
In Denmark there are several solutions... at work we work on integration with Zensehome.
LK IHC - control everything in your home... expensive
Fagerhult esense - more for office/big Buildings
Servodan
and whats their name...
Jan.
Main: Touch -> Beresford Caiman II -> Carver A-500x -> B&W 704
Office: Duet (Audiocom)
-> Luxman L-210 -> Stax SR84 Pro
-> Beresford Bushmaster -> Superlux HD668B
Server: A8-5500, 4 GB, SSD + 2*1 TB, Win8 w. SBS 7.9 (SQLite w. High Mem)
Tied together by D-Link DIR-655 + DGS-1008D