The blendables ingredients are starting to get out to some of the wpf community and so far we like what we're seeing! Lee Brimelow had a nice writeup on Zoombox complete with a ClickOnce app for everyone to try out. Check it out at thewpfblog.com.
For Don Burnett of Don.NET's WPF Designers Blog blendables was one of the highlights for him at MIX07. We're excited to see the community start building applications with blendables and we love the feedback on our first control mix.