Thanks for this awesome improvements. I tried only speedpatch because I don't want that things about auto underclocking in batterypatch. After install and twice reboot there was significant difference in speed(it was much faster of course) especially when switching windows in microB. However, after some days I got in x-terminal those errors desribed in post #2749. My n900 slowed down, too. Then I tried just reinstalling speedpatch and rebooting the device once and problem vanished from x-terminal, it also sped up again.