Over at Discchord, editor Tim Webb is doing a great job of keeping up on all the latest iOS apps - you really should check it out, he also is a bit of a synth nut and has just posted this video in which he pits the latest TB-303 clone against Korgs Volca Bass. Not a fair fight maybe? Well there are simillarities and of course differences.
Check out what Tim made of it.
Btw, there is a smidge of fruity language in there, if that sort of thing offends you, perhaps steer clear...
Raphael demonstrates the Lift dimension of expression
A new plug-in for creating 3d spaces on your regular headphones