Update September 2011: Looks like blueprint is offline so I contacted Ryan and he was gracious enough to provide his source files. See his original article and code now on my site.
Ryan over at intereactive.net posted an excellent fix way back in late 2009 for the 1 Pixel Out Audio Player (ETA: now on my blog since intereactive is gone). The player is widely used as a standalone item and as a WordPress plugin. The problem is that being Flash-based it isn’t supported on iDevices — iPhone, iPad, iPod — so Ryan came up with the fix. His solution detects if an iDevice is accessing the page then replaces the Flash player with an icon linking to the audio file.
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iOS Tips and Tricks