The new service will let business users login to their desktops from either a thin-client terminal or low-end PC. But rather than using the thin client to connect to data in an enterprise data center via IBM's Smart Business private cloud and CloudBurst offerings, both of which were launched in June, users will be accessing those same resources in the cloud hosted by IBM. The latter was also disclosed at the time.

The service initially will be available with support for Microsoft Windows XP and Vista desktops running in the cloud. Chiang said Windows 7 support will be added shortly after launch, though he did not specify when. Customers will have to pay for the OS license and any software they would have to run on Windows. While Chiang wouldn't disclose pricing, he indicated there are no startup fees and users can sign up for a minimum of three months and 50 users. Another option will allow 36 month contracts with at least 200 users.

Source: http://redmondmag.com/articles/2009/09/02/ibm-launches-virtual-desktop-in-the-cloud.aspx