I have sent many an email directly letting you know that NPM vNext beta 3 is almost ready. If you did not get an email and are interested in running and giving us feedback, please send me a PM via thwack.
A couple requirements:
Must be on active Orion maintanance
Must NOT put on your production server, must install on another VM or Server
Support for beta is provided via beta forum only i.e. you cannot call Support on beta