The Star Citizen site has been updated with the news that three more groups will be allowed access to Alpha 3.0. 1st Wave testers, Subscribers and Concierge have access to the PTU and can download and install the PTU Launcher and get started testing the "traversal system by quantum traveling, landing on moons, locating and visiting Levski" and just spending time exploring.
In addition, the latest Star Citizen: Around the Verse has been published that checks out the latest "Burndown" list of things being worked on in preparation for the larger release of Alpha 3.0.
Check out the Star Citizen forum for PTU information and the video below for Around the Verse.