hAudio-RSS has been updated to version 2, the code has been modified and does not contain any suspected anti-patterns (info being scraped from the head not visible). The biggest change is that hAudio-RSS is now licensed under a Creative Commons Public Domain License. This is because microformats.org have recently required all contributions on the microformats wiki have a public domain license, which personally I find is a smart move, Anybody can freely use microformats anywhere for anything and not have to worry about possible licensing or copyright infringements. hAudio-RSS is an extension of hAudio so I feel it should have the same license. There is also a free Template that you can download of the whole hAudio-RSS v2 markup also released into the Public domain which includes, XHTML 1.0 Strict document, CSS, Bookmarklet, Buttons and guidelines. Download hRSS-template.
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