iPhone development continues despite a lack of SDK. Masayuki Akamatsu has updated his native iPhone OSC client aka.iphone to 2.1, and includes plethora of screen/input configurations to suit your mobile performance needs. The update should suit typical VJ and Dj applications with its range of GUI sliders, knobs, button grids, etc.
If you have an iPhone or iPod Touch, be sure and check out aka.iphone. Very cool stuff. Yes, sorry, another Apple oriented update. Shoot me.
[Ed.: Note you will want Max/MSP/Jitter to work with this app, though I think it should work with Windows, too; I just lack a machine that can test it. Be sure to see also Masayuki's complete Max collection, which now covers everything from Wii remotes to 3D SpaceNavigator controllers, Apple Remotes, and even the motion sensor in the MacBook Pro. Completely brilliant. And needless to say, even if you don't want to hop on AT&T's mobile network, this gives you options with iPod Touch, too, even if you can't play Phase on that. -PK]