Ashley, you beat me to the post edit. Man, sometimes I think you aren't a real person and instead a bot :)
In my attempt to reply quickly and start on the fix, I was too brief and left out a part. So I wanted to edit my previous post stating that in addition to the jsonp code, you need to add bridge code that will pass information from the webview layer down to directCanvas layer. XHR does not exist in DC. Sorry about leaving that out. In my head I wrote it, but it never made it to the screen. :(
I will be adding support into the appMobiDev plugin to handle this and will reply when the changes are up on github.