Saw this on the David Lebowitz blog as well and have been meaning to try it out. I did last night - loved this icy treat. And I had no trouble getting the popsicles out of the mould. Will be making again :D
I love it! I put in ice cube trays with double handle picks used for appetizers. I will spray Pam the next time I make though. Then they will pop right out. My popscicle molds went to my kids. I think it would be nice to put a little sweetened cocoa mix powder with it for mocha cream cicles.