Yes that is chalkboard paint. And yes its purple. I'm so excited.
I finally did it and I love it. It was very easy and cheap to make. I did 2 coats because I didn't do such a great job the first time around. I was to excited and just wanted to see if it really worked. :-)
Here is what you do.
1 cup of any paint. (I went and got purple wall paint since it was for my daughters birthday)
2 Tablespoons of Non Sanded Grout
Will post more pictures of more projects to come.