We all know Apple doesn't allow autoplay on html5 audio tags with Mobile Safari. The workaround for iOS 4 was to use an iframe with an mp3 src. Apple seems to have patched this on iOS 5.
<html>
<body>
iframe mp3 autoplay test
<iframe src='iframe.mp3' width='0px' height='0px' scrolling='no'></iframe>
</body>
</html>
This works on iOS 4.3.1, but not on 5.0.1.
Any workarounds left, or has Apple finally patched all the autoplay loopholes?