Intua’s iPhone app Beatmaker is so much fun to use! The small price of $19.99 is great considering the power and design behind this mpc style application. You can make beats on this thing anywhere and plug the output of the iPhone into a mixer and start working on cuts in real time. There are other more in depth articles scattered around the web so I suggest you hunt them down and do your own research.
Bottom line is if you have an iPhone and are into hip-hop beatmaking or dance music. Get this app now!
Urban Fabric's Braaap! 