The September Windows Azure One Month Pass will be available starting September 1st. This offer is limited to 500 passes, first come, first served. It’s a great opportunity to learn and put Windows Azure and SQL Azure through their paces.
As a reminder, the passes are good for the month that you sign up in. For example, If you sign up on September 1st you will have full month of September. If you sign up on September 20, your pass will expire on September 30 etc.
More Info: Enroll