I think I'm one of the few that thinks this is positive news for M and us in the long term although it will perhaps hurt current customers (including me).

What I see from this is Roon having the resources, commitment and expertise to develop the best music serving interface software out there, continually changing and improving the experience. Lets consider what M have really done with the Sooloos interface since they acquired it - which is not anywhere near as much as I(and many others on here) expected. The way Sooloos deals with individual tracks is pre-historic and the only upgrade I can remember of note that actually improved my experience was being able to go to album details from the Explore function.

My personal concern is that the C15/C10 will not be able to support top of the line streaming solutions which would make use of swipe and much better responsive touchscreens. I also very much doubt it would be cost effective for M to improve this with the low cost of tablets these days. But in the longer term, if I can have a top notch app on a tablet that will control my M system and deliver superior quality sound to what I have now - which also shouldn't put me out of pocket (in the context of what I've already spent) then I'll be a happy camper with a nice ornament (aka C15!).

Main: MS600, G61R, DSP3100Vx3, DSP33x2, SW1600, Samsung 65JS9500 TV, Sony X800, Wireworld Star*light video cabling, Isotek Vision, Isotek Elite/Prem mains cabling.
Office: Roon ROCK on NUC7i5, Allo USBridge + iFi PSU, Prime Amp/PSU, Fostex TH900.
On the Go: Surface Pro, Explorer2, Sennheiser Momentum M2
Smyth Realiser2 on pre-order :-)