I just realised that if it does 2 way with the MLGW, that is really cool, as status information (room temperature, etc...) could be displayed on the remote's screen.
Do I understood you correctly that it needs the MLGW? I would say it is a completely missed opportunity if that is the case.
Just like Räuber, I would prefer to have an app running on my mobile or tablet (either Apple/Android/W7/Symbian/RIM) or if this is cost effectively not possible I would like to buy one or two to have it work 2-way with my BS5 and preferably with my BV10, Apple mini and in multiple audio zones, as well.