task.js

//
// Define our model class.
//
MyApp.Task = SC.Object.extend({

    toJSON: function() {
        var hash = {}, key, val;

        for (key in this) {
          if (!this.hasOwnProperty(key)) continue ;
          val = this[key] ;
          if (typeof val !== "function") hash[key] = val ;
        }
        
        return hash;
    }

}); // gives us the "create" function.

Hmm. This will include computed properties, but that only matters on SC.Record instances. In general, we just want the non-computed properties, so we can skip functions completely.

Fixed.