TFSPreview.com no longer needs an invite code
At TechEd USA 2012 in the keynote and the ALM session it was announced that you no longer need an invite code to access the Azure hosted TFSPreview.com, it is now open to all.
There are no final details as yet over the pricing when it goes fully to production but they did say there will be some form of free offering going forward. We will have to wait for more details on that front.
Read the complete post at http://blogs.blackmarble.co.uk/blogs/rfennell/post/2012/06/12/TFSPreviewcom-no-longer-needs-an-invite-code.aspx