No specific info about version 3.1. Please visit the main page of Air Display Host on Mac Informer.
Air Cam is a video streaming and surveillance tool for Mac OS X
Air Connect is the software-as-a-service platform that backs the Air Login app.
Air Chalk is a very interesting presentation tool for the Mac.
VSTi Host is a Macintosh application that allows VST plugins.
Air Control is configuration and installation software for AIR.