My AD2PI Network Appliance arrived from the US today, and I've just spent the last 30 minutes or so setting it up and getting it online. My panel is a Vista 48A, which appears to be an Australian-ised version of the Vista 48, and seems to have no issues talking to the AD2PI.
Thanks for this awesome product, and please keep up the good work!

EDIT: And, just curious, what would be the chances of getting notification support for Trouble events? I note they're covered in the protocol, but not in the Webapp?
...and I forgot to order the battery power kit.
