According to a post on the SQL Azure Team Blog you can upgrade your CTP accounts to a paid commercial subscription starting today, below is an excerpt from that post

Starting today you will be able to upgrade your Community Technology Preview (CTP) account to a paid commercial subscriptions. If you upgrade your CTP accounts during the month of January, 2010, all Windows Azure platform usage incurred during this month will be at no charge. You will also have full visibility during this month to your W...

There are some cool things announced by Microsoft

SQL Server Application and Multi-server Private CTP - Registration



As part of SQL Server “Kilimanjaro", we have announced baseline investments for application and multi-server management. We are recruiting customers to participate in a private CTP with SQL Server Engineering. Registration for the Private CTP will take place until December 15, 2008 and the 4-5 week Private CTP will begin in mid-January. Microsoft is looking for participants in entities with at least 1 DBA, more than 25 PCs, and...

Run Microsoft Windows Server And SQL Server in the cloud on Amazon EC2

Amazon Elastic Compute Cloud (Amazon EC2) will let you run SQL Server in the cloud. Here is the announcement

Starting later this Fall, Amazon Elastic Compute Cloud (Amazon EC2) will offer you the ability to run Microsoft Windows Server or Microsoft SQL Server. Today, you can choose from a variety of Unix-based operating systems, and soon you will be able to configure your instances to run the Windows Server operating system. In addition, you will be able to use SQL Server as a...