The software and interface look like they work great but I don't think the Touch system will really be all it is cracked up to be. I recall reading an article talking about the new ATS and the touch system how it was copying Ford's Sync system instead of replicating the already dominant scroll wheel system that Audi, BMW, and MB use.
I dont ever wish I had a touch screen in my BMW. My dad has the touch screen in his F250 and I never have been a fan of it after using iDrive.
If it was going to be a touch system I'd rather see my iPhone screen in the display and control it with my iPhone in hand.