I see now why, so you have access to the input element for the upload form.  This works for me for now!

However can you please update `onupload` to be properly camel-cased as `onUpload`?  

Also!  It may be better to extend `Ember.TextField` and add a binding that just exposes a reference to the input file, similar to what is being done here: http://stackoverflow.com/questions/13923122/ember-js-upload-file-component/13934706#13934706.  Would make the view more re-usable and extendable, whereas right now this component is specialized to just this use case.