For those of you who are MSDN and TechNet subscribers, you can look forward to an April 30 release, but as mentioned, us mere mortals are stuck waiting a few extra days for it. The blog post also has some rather cool facts: at certain points during testing, bug reports and feedback were coming in every 15 seconds for a week flat. It goes to show that beta testers really do make a difference. They also state, "Many of your suggestions helped us refine the new and improved taskbar, the behavior of Aero Peek, Touch, Windows Media Player, and much more."
It's good that we finally have an official release date; now all that's left is to play the waiting game.