On the web, it seems more or less everything is eventually getting out and gets accessible for people to download and see. You can fight hard and make a real effort but as we keep seeing, lots of secrets get revealed in the end anyway.
The other day a friendly fellow joined the Rockbox IRC channel and pointed out a russian site full of iriver goodies such as service manuals, firmwares and perhaps most importantly: circuit diagrams for just about all (somewhat older) iriver models, including the H10, H100, H300 series and more.
I wish we had these before when the Rockbox ports for these targets were younger, but I’m sure they’ll still come handy to some people now as well.
(Now I won’t reproduce the link here just to not make the traffic too hard on that site and to avoid getting into problems for linking to content that is clearly dubious legal-wise, but you don’t have to be a genius to find the link yourself.)