Good news, at least for the few people who own
iRiver HD-based mp3 players (hiya, Sumei): The
Rockbox project, which provides open-source firmware for
Archos players, is being ported to the iRivers. This is a big undertaking, far bigger than my understanding of it, so it's not like I'm holding my breath, but nevertheless:
Rockbox for iRiver, on its way. (Via
Slashdot)