As was noted a while back, Red Orb's Prince of Persia 3D page has some release dates for the game (story), saying "The wait is nearly over" and "The Demo will be released on August 27. The Full product will ship September 19" (actually that's a slight change from the original post that said the demo was due today). Now this mail just came along from designer Carson Utz saying the game is now gold, giving a feel for its content:

Our game, Prince of Persia 3D, has just gone gold!

You never know this stuff until the very end, but just for the record we managed to get 17 levels into the game over the 12 listed on the box, and we're shipping with 2 CDs of tasty goodness. Expect many hours of gameplay in our sequel to the famous classic.