Hi,
Just installed RockBox tonite in Dual Boot Mode. Works Great !!
However...if I might offer a suggestion, the Manual needs to be modified in the section that describes using Dual Boot mode (Section 3.1.3)
To return to RockBox mode from Original Firmware mode, you will need to power off, then slide the Battery Off Switch on the bottom of the player to the OFF position for a few seconds, and then back to the ON position. Your player should now start up in RockBox mode once again.
Hope this is the right place to suggest Manual's updates....if not could one of the mods please pass this along to the S60 development team.
Regards,
Dave