Oh man, I'd love to use my Apogee One with my iPhone for recording samples on the road. I can get song ideas down with the internal mic, but it's a pain because the mic has very little headroom. For a full band song it needs to be in another room, them it sounds... well like it's in another room. If I could plug my 414 in for anything I'm recording I'd be sooo happy.
Come on Apogee... you can do it! This is what the One was meant to do! Small portable recording. And the iPhone is the perfect DAW for that. It has the hard drive space, CPU speed, and interface to do basic one track at a time recording with multitrack playback.