Yes, it's a fact. Inspired by Watir, I started developing WatiN in decemeber 2005 to make a similar kind of Web Application Testing In dotNet possible. Since then WatiN is grown to a feature rich and stable framework. It consists of about 50 classes, wrapping all major HTML elements. It can manipulate elements in the IE HTML window, and in modal and modeless HTML dialogs. It handles alert windows and supports a basic but extensible logging mechanism. A great deal of the code is covered by unit tests but there’s room for improvement in that area. So now it's time to go public at Sourceforge!
That's great, but lost of things need to be done (website, move code and releases to sourceforge etc..). So please stay tuned cause I expect to publish code, release(s) and website within the next week.