I know there are a lot of visual tools on the iPad to make music, but Konkreet Performer by Konkreet Labs really caught my attention.
Taking full advantage of the possibilities created by the latest multi-touch technology, Konkreet Performer delivers a revolutionary new way to control your DAWs, synthesizers, samplers (anything that receives MIDI/OSC).
What really intrigues me about the video in particular is the implication of two-screen experiences between your traditional tools and their new new hyper-visual app. I was always a little skeptical of using over-the-top abstract tools in the creative process. However, if you can have them work side by side with more traditional/utilitarian tools, it seems like a lot of interesting things could happen.