Nick from SonicState reviews the Alesis IODock. Basically you put your iPad into the dock and you get Microphone input (with Phantom Power), Balanced Outputs and Midi. I could use one of these.
“The iO Dock provides microphone and instrument users with two combination XLR and 1/4-inch inputs, each with its own gain control and switchable phantom power for condenser microphones. Producers can use the iO Dock’s MIDI jacks to sequence external keyboards, samplers, drum machines and synthesizers, or perform using the iO Dock as the sound module and their favorite MIDI-compliant keyboard, drum pad or other controller. An assignable 1/4-inch footswitch input enables remote control of any app-defined function such as stop/start or record. – alesis.com/iodock
For more info: alesis.com/iodock