I can confirm!! I used my new Ipad Air with the Alesis IO dock and it was awesome. I had a little problem at first but it was due to me having to tell my midi keyboard controller to send out "midi out" in the midi out instead of the USB... I made sure I downloaded my midi controller manual to be extra sure,
I can confirm I did a 5 hour session jamming with some great synths (alchemy, sample tank, audiobus, cubasis) it was very impressive!!!
The Alesis IO dock performed better than my expectations, also I have the 360 rotating case on my ipad air and surprisingly it held snuggled on my Alesis IO dock, I am however going to make sure I put something on the bottom of my ipad air to be safer.
I got the Alesis IO Dock for $129 at Sam Ash. Oh by the way one more thing to confirm, those cheap $6 lightning adapters DID NOT WORK, thankfully I ran down to my local SAMs club and they had a genuine apple lightning adapter and it works flawlessly, I'm very happy with my IO dock, I was able to lower down my main volume, increase my headphone volume insert my 1/4 inch microphone (it also accepts XLR), recorded an awesome vocal session, the midi instruments latency was non existent.
Overall I am very impressed, let's record some more tracks and I'll be back to tell you how it's going,