Audiofile Engineering has released MIDI Surface for iOS. Designed for use with Line 6's MIDI Mobilizer hardware accessory, MIDI Surface gives iPhone and iPod touch owners the ability to quickly and easily build their own fully customized MIDI control surfaces. Seamless touch-screen control of MIDI-enabled instruments such as keyboards, drum machines, software synths and more is now available in the palm of users' hands.

"There's no reason to sacrifice utility for convenience when it comes to MIDI control," said Matthew Foust, co-founder and Operations Manager for Audiofile Engineering. "When used with the Line 6 MIDI Mobilizer, iPhone and iPod touch are more than powerful enough to store many full-featured control surfaces under one roof. We created MIDI Surface to harness that power and make it accessible for musicians at all levels."

Suitable for use on stage, at home or in studio settings, MIDI Surface offers four interface styles, each with its own set of changeable parameters: The Keyboard interface features Channel and Velocity controls. The Sliders interface includes Channel, Controller (Mod Wheel, Expression, etc.), Low Value and High Value controls. The Drum Pads interface includes Channel, Category (Note On, Controller, Program Change), Note, Note Off (Immediate or Touch Up) and Velocity controls. The X-Y interface supports up to four touches and includes Channel, Controller, Left Value and Right Value controls.

Users can create and save as many MIDI Surface interfaces as they like. Each customized control surface can be configured in precise detail and adjusted on the fly. Users can even store their own unique Presets for quick recall.

Audiofile Engineering previously developed MIDI Memo Recorder, a free application that allows iPhone and iPod touch users to record, store and playback MIDI sequences using Line 6's MIDI Mobilizer accessory.

MIDI Surface is now available for download via the Apple App Store for $5.99. Installation on iPhone or iPod touch requires iPhone OS 3.1 or higher. The required Line 6 MIDI Mobilizer accessory is sold separately.

More information on the Line 6 MIDI Mobilizer can be found at line6.com/MIDImobilizer.