Trip, I suppose you mean half of BS5+BM5, otherwise that'll be too good to be true!
Do you know if it'll just do music, of if it'll have some multimedia capabilities (video, photos), like the BM5.
I also guess, that it will be a product reserved for people do not have a system currently due to the impossibility to integrate it, until they come up with the ML-Beonet converter.
Philippe