I actually just started working with Adobe a few weeks ago, evaluating
the very thing you mention.
I do have a slightly tweaked version of Axiis running on an iPad via
Flex 4.5 right now. Degrafa runs fine with the mobile air framework,
but I am considering adding FXG support and re-vamping some of the
internals in Axiis so there are no MX depdendencies.
Right now though, I am thrilled with the performance I am seeing on
the iPad with Axiis - animations, rendering, etc.
I hope to have something to demo in the next couple months that I will