Microsoft released a quick 10 minute video that provides an overview of the pricing meters and billing associated with using SQL Azure.
What's covered are:
- the business benefits of utilizing our cloud database
- a comparison and overview of the different editions of SQL Azure database
- understanding the pricing meters
- examples of pricing
- a walk-through of viewing your bill
If you haven't already, for a limited time, new customers to SQL Azure get a 1GB Web Edition Database for no charge and no commitment for 90 days. You also get free usage of Windows Azure and AppFabric services through June 30. This's a great way to evaluate the SQL Azure and the Windows Azure platform without any of the risk. Details on the offer are here. There're also several different offers available on the Windows Azure offer page.