[miratom]

Sure, you could do all that with iPads and Wifi, but have you actually tried it? I suspect the usability will not match up, due to a slew of technical issues and lag.

[trafficlight]

Judging from this video, the iPad seems very responsive.

He is using both an iPad and an APC40 to control Ableton Live using a custom Max/MSP app that was built inside Ableton.

http://binaryally.tumblr.com/post/557336763/apple-ipad-akai-...