Also on Macbook Air, 10.8.2 - it's working.
However I get a lot of strange messages when taking the computer out of sleep and it's reconnecting to a wifi network - even when the VPN connection is OFF!
See attached picture (below) of error message, and of log messages in Aruba VIA. These messages appear even though I am disconnected (I have not connected, either from the VIA prefpane or the Network one).
While it works, these log/error messages are very irritating.
[Edit: added version number of client] VIA Version 1.0.0.3.35402