Sandcastle October 2007 CTP released
Only a few weeks after the September release of Sandcastle, Microsoft have already released the October CTP. Again, a number of bugs have been fixed and some new features are added. Most noticeable feature is the support for FireFox. The HTML that is rendered by this release of Sandcastle should drastically improve compatibility with FireFox. So all Internet Explorer haters can now enjoy Sandcastle as well.
A full list of bug fixes, new features and changes can be found here. The CTP itself can be downloaded here.
If you want to try Sandcastle then I suggest you read this blog post to see which items should be installed.