Oops, I got V-Control mixed up with AC-7, my bad...

There actually are several more, but they aren't easy to find by searching the app store directly. I had better luck using Google, believe it or not.

Regards,
Dan

if you own Windows 8 on your DAW, then there's a nifty iPad app called Splashtop 8 that works nicely in tandem with it.  You get some pretty decent touch screen capabilities too with X2a that are available in Splashtop.

There are some caveats though.  Your DAW screen resolution is changed to match your iPad (since the app echoes the same screen you see on your DAW), and although the touch screen stuff is cool, not everything is available or obvious in the app....yet.  

But it's an interesting twist, and one that extends to windows 8 in general