Alright, just as I wrote a blog post about the lack of documentation around aspx workflow forms, here comes some news from Microsoft on it:

 

"In Visual Studio 2010, you’ll be able to create list and site level workflows as well as create aspx association and initiation forms." Source: Somasegar's Weblog.

 

To my knowledge, the next pre-release version of Visual Studio 10 will have also a rewritten engine of the Workflow Foundation (faster, extended functionality), which was mentioned at the last PDC.

 

Can't wait to see if the improvements are going to be as good as promised. I'll definitely check and report back here on my blog about the findings.