This article was written on December 2008 and contains obsolete information. In particular, Autopano Tour does not exist anymore and is no more included in Autopano Giga. It has been replaced by Panotour, which is more complete and sold separately.
Here is a first preview of Autopano Giga, including Autopano Tour, the virtual tour creation tool of Autopano Giga. You can also have a look at the resulting Flash virtual tour created during this demo.
A new Alpha version will be available in a few days for Windows, and a few days later for Mac and Linux. The final release of Autopano Giga is planned for the beginning of March.