I just know that to become root on diablo really easy. I don't know if I'm wrong, but I read somewhere here i just need to input "sudo gainroot" on X-Terminal to do that. Or maybe it need some app/file installed, before it works, but it works on my N810, maybe because I already install quite many app/file from application manager

About USB Control, I really dumb! it already installed on my N810, I just realize I installed it via app manager-installable app. the one app I miss is just USB OTG. I search on garage.maemo I found USB OTG plugin. Once I install it, USB Control works very good!!