I have started work on a port of Rockbox to the iriver H10. I have created a new build target and added a Flyspray patch: http://www.rockbox.org/tracker/task/5731
The patch makes it possible to run custom code on the H10. Unfortunately, I have managed to brick my player in the process of trying to figure it all out. I did have code working on the device long enough to figure a few things out and attempt a button driver.
Is anybody else interested in the H10 port? I have added details of what I have learnt to the wiki: http://www.rockbox.org/twiki/bin/view/Main/IriverH10Port
Barry Wardell
