I just read this update on the Ya Ya board.....
Mark your calendars! Beginning the second week of June 2008, Tony's all-new, highly anticipated One on One fitness program will be available! This is a unique continuity program in which subscribers receive a targeted workout full of brand-new moves each month! Regular price is $19.95, while VIP Club members receive 10% off! You also get a free DVD wallet to store each workout just for signing up, and a BONUS workout after a year. Watch for it in the store in the next month and get ready to go "One on One" with Tony Horton!
As previously mentioned, you will be able to buy these "as you go"....but from everything I've read, to get the DVD wallet and the bonus workout, you'll need to subscribe to get the workouts auto-shipped to you each month.