Tested and working on iPhone 3GS and Android native browser (gingerbread), but will not play on Firefox mobile for Android. Hope to get results back today from friends on iPad, iPhone 4, and older Android browsers (eclair and frojo).
With Firefox Mobile the player and transport controls mostly draw, but no playlist. When you hit play there is a graphic sweep from left to right - as if it buffered or played - but it moves to fast and no audio is output.
Let me know if you need any specific information, or if there is something more helpful I can run on my end - I'd be happy to help debug this! choochus @ gmail dot com