Short version -- The release of ClearOS 5.1 Beta is going to slip. We (read: I) apologize for the missed commitment, and will do our best to make sure it does not happen again. Our hope is to have a beta in your hands in time for the weekend.
Long version -- There's no excuse for the missed deadline, but thought you should know what's going on. The underlying operating system is ready to go and we're putting the finishing touches on usability and interface design. Last night, we decided that the menu system was just not workable (and almost unusable on my Ubuntu/Firefox laptop!). In the next day or two, we'll be replacing the menu system with an interim solution. It will likely be changed before the 5.1 final release, but at least we'll have something to beta test!
Peter Baldwin