I know that I really love the idea… especially for templates.
Anyway, as I was working with the Date Picker I noticed, as I'm sure so did you, that the date is formatted in a way that I would rarely use...
12/30/2009
This leads me to wonder how I can change that.
So, as expected, I went searching for an answer.
And… after many failed attempts with right-clicks and whatnot I finally took a good look at the Controls section of the Developer tab of the Ribbon.

Clicking the Properties button gave me just what I was looking to find… Imagine that?

Pick one and click OK.