title: Initial 'checked' state of radio button with jQuery Mobile + knockout.js
body: <p>I can't seem to figure out why the initial state of my UI doesn't have the first radio button in the <code>'checked'</code> state.  Here's a jsFiddle: <a href="http://jsfiddle.net/floyd_may/JcTxT/" rel="nofollow">http://jsfiddle.net/floyd_may/JcTxT/</a></p>
  
  <p>However, this jsFiddle here works just fine, even if you modify it to change it to <code>radio</code> inputs (instead of <code>checkbox</code>): <a href="http://jsfiddle.net/rniemeyer/EGAH9/" rel="nofollow">http://jsfiddle.net/rniemeyer/EGAH9/</a></p>
  
  <p>You'd start thinking that perhaps jQuery Mobile has a part to play in all this; however, this version of my original fiddle has the jQuery Mobile portions cut out, and still doesn't work: <a href="http://jsfiddle.net/floyd_may/JcTxT/5/" rel="nofollow">http://jsfiddle.net/floyd_may/JcTxT/5/</a></p>
  
  <p>Why isn't the 'child 1' radio button initially appearing <code>checked</code>?</p>