Spectrasonics, makers of virtual synthesizer Stylus RMX and Omnisphere, have released a free application for the iPad called the Omni TR. This new application give users hands on control over the virtual synth, Omnisphere, with a variety of options and a Tron like display, sort of.
Omni TR (touch remote) is adds a very important control scheme to Omnisphere. The control UI on the IPad rival what would be found on the display of a Korg Triton or Yamaha Tyros. Since the controls of virtual synths have been limited to just piano keyboards, knobs and faders, this added control gives a new bit of comfort to using Omnisphere.
The Main Page displays patch names, volume, mutes and solos. The Controls Page presents a mixer for controlling effects and other parameters such as resonance. The Orb Page is a circular controller that allows real time control of multiple parameters from a touch, similar to that of a Korg Kaos Pad. There is lastly a jumbo mode for those who needs to squint a little bit while reading the display.
Omnisphere is Spectrasonics flagship virtual synth. It features 8 independent arpeggiators, thousands of sounds and effects.
Here is a demo of Omnisphere and Omni TR.