I was able to snag this last night (woohoo Xmas $$!!), and just got a chance to check it out this morning...
I wound up playing til 1-7... And I'm so freakin stoked to write this then get back to playing. The controls are great (is there any chance of adding a 'static' joystick alongside the floating one?)... I was a little worried about the 3D platforming as the only 3D platformer I've really clicked with on the iOS is Crazy Hedgy, but here, the camera is done perfectly, which really helps with the platforming segments.
That's about it... I can't really add anything else to the convo that hasn't been said already... Just wanted to toss my enjoyment card into the 'good experiences' hat. =oP