Using a YouTube tutorial created by John Lindquist, I was able to create a directive using a template. See fiddle: http://jsfiddle.net/37PSs/

Now, I want to use the value of the attribute as a variable to a function call. Something like this:

html:
    <hello-world name="World"></hello-world>

javascript - directive:
    template: '<span>myFunction({{name}})</span>'

javascript - myFunction(theirName):
    return ("Hello, " + String(theirName) + "!");

The closest I've been able to get is passing an [object Window] to my function.