This video demos making beats with iSyn Virtual Music Studio, a virtual music studio for Apple iPhone and iPod Touch, with two synths and a drum machine.

iSyn will retail for $4.99.

Here are the details:

iSyn is a virtual music studio for Apple iPhone and iPod Touch, developed by audioMIDI.com and programmed by Harry Gohs of Virsyn Software Synthesizer.

iSyn features two fully programmable virtual-analog synthesizers and a drum machine. The synths are the real deal- three oscillators, 24 db/octave ladder filters, two envelope generators, full mod routings, effects, the works. And the drum machine has eight fully-editable kits.