The Null Device
Ah yes, Rockbox
2.1 is out now, with a raft of new enhancements, including loadable plugins, a calendar application, a swag of new games, and a Chip 8 emulator. (I believe Chip 8 was some very primitive hobbyist home computer of the 1980s, and allowed the sufficiently masochistic to program games in machine code or something like it. It's not quite a Commodore 64 emulator on your MP3 player, but it's something.)
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