Hi,
I just did a short bikepacking trip on the AZT, from Tucson to Patagonia.
Pictures and some words are over on bikepacking.net:
http://www.bikepacking.net/forum/index.php?topic=47.0
There are still a few miles of trail to be built, but this is already a great section for bikes. The Cienega Corridor stuff, in particular, is a pure pleasure to ride.
ScottM