Quick note: finally got Joost up and running. Got 3 invites. Still left out in the cold? Leave a comment (use the email address that you will want to use with Joost). First 3 will get an invite. If you comment and already HAVE a Joost account, please say so. Also: Joost for Mac is still Intel only, no need to grab an invite from someone else if you can’t run it anyway 🙂 Good luck!