I was wondering if this could be possible. having a app that works like a Pioneer CDJ1000 MK3 or any of the Pioneer CDJ line. Playing your music out through headphone jack with a headphone to RCA cable and plugging that into the back of the mixer. and controling track selection, pitch and cue.
This would very cool indeed. I guess the features would need trimmed back a little to fit the control on screen. maybe use accelerometer to get the deck and fader etc in vertical view and then go horizontal for speed adjust, navigation and loop buttons. Talk about a killer app.
Otherwise I'd really like to see a port of Djay for OSX, the fairly basic interface should be easy to run with flabby digits on the touch screen.
Heres the site http://www.djay-software.com/
Maybe some of us should email the developer with a bit of persuasion to get into the iPhone developer program