There is a wifi dlna adapter with 30 pin iphone-ipod connector, I think you can convert any ipod-iphone 30 pin speaker in DLNA speaker to work with SmartThings, I think the difference between this adaper and sabranet wifi could be the volume control , its possible this adapter could change internaly the speaker volume and not just the audio source volume, someone could confirm this adapter ? thanks WeSahre Music
http://ecx.images-amazon.com/images/I/810AX0dWSlL.SL1500.jpg