This post has already been read 11284 times!
I stumbled upon a folder in the Nexenta CE USB stick handout I got on VMworld. It included some scripts to install VAAI for NFS on Nexenta CE!
I checked it out, and they seem to work ok although the plugin released 22 October 2012 is still 1.0.127 beta
Download the plugin here
As this is still beta, please just use it in your lab… not production