Jon Flanders blog has a teaser of some Ajax-y features he's been coding using Atlas to enable the hosting of the WF designer in an ASPX page. I can't wait to see how he's done it.

Hosting the designer (as I've mentioned) is a bit of a pain when all you want to do is visualise a workflow - though it's superb for actual design - so this may be a really nice option.

So one question: how about the same thing in WPF..?