I’ve been looking at control surfaces lately and stumbled on this…
Has anyone used this? Comments? If it works as shown in the video demo it looks brilliant.
Yep, it’s a pretty slick controller using the Mackie HUI Protocol. Saying that, it allows to tweak EQ, sends, VST etc. The only drawback IMHO is that the use of knobs on a touch pad is kind of lame (but that applies to all the apps I’ve tried).
Anyhow the latest version added an interesting feature. You can open up a window on your iPad to control the screen of your DAW! 
Cheers,
B.
Edit: Forgot to mention that the setup of the connection between this app and my PC was the easyist I ever experienced. I installed their driver and it worked.