We've refreshed the recent Toolkit release, you can download it here. After the last release, we discovered that the ASP.NET AJAX install didn't drop the Microsoft.Web.Extensions.Design.dll on machines that didn't have VS installed. This was causing quite a bit of pain for people, so that dependancy has been addressed - meaning the Toolkit will now work on those machines. CodePlex also added "voting" for issues so we fixed the top couple of issues that were causing troubles for people and kicked out a new release.
Going forward, there are a bunch of new controls in the Development branch that need to get polished up. Hopefully we can turn another release with a bunch of great new controls before the holidays!