Pretty weird form factor. I assume that you can record to the Ipad's memory, so it's good for taping, at least in theory.
2 x XLR with phantom, no internal battery though AFAIK. You'd have to rely on external DVD battery or similar.
I guess the weakest link is still software for the Ipad and hardware crippling by Apple. Last time I checked, there was still a 16/44 limitation for recording audio.
No MSRP yet...
http://www.alesis.com/studiodockAUDIO INPUTS
* 2x XLR-1/4"
* Individual gain controls
* Phantom power, switchable
* Guitar (high-impedance) switch on Input 2
AUDIO OUTPUTS
* 2x 1/4" Main
* 1/4" TRS Headphone
* Individual level controls
VIDEO OUTPUT
* RCA Composite (requires compatible apps)
CONTROL I/O
* MIDI In (DIN)
* MIDI Out (DIN)
* USB MIDI (Host)
* 1/4" Footswitch (function assigned by apps)