http://www.asp.net/whidbey/ now has a lot of whitepapers and screen-shots of ASP.NET and Visual Studio Whidbey.
Seems like “Whidbey” has a Frontpage 2003 engine inside, which is nice. Now it can target a particular HTML standard such as XHTML 1.0 Strict or XHTML 1.0 Transitional. Nice….
ASP.NET "Whidbey" and Visual Studio "Whidbey" are the next release of Microsoft Web platform and tools. With ?Whidbey? you will be able to build powerful, scalable, and feature rich Web applications faster than ever before. Common and never-before possible scenarios become simple allowing developers to build the best Web experience. "Whidbey" is currently in Alpha, with about 2/3rds of the functionality complete expect a feature complete beta coming in late spring.