Last week I have release WatiN 2.0 Final (188.8.131.529). You can download the zip file from Sourceforge:
or install it using NuGet (need to have the Package Manager console for Visual Studio 2010 installed, get it at nuget.org). To add it to your project is as simple as:
PM> Install-Package WatiN
The release notes can be found on the new website http://watin.org (which is still in flux but getting there)
Enjoy Testing with WatiN!