The main reasons why I didn't include 125MHz yet: * by default the kernel should run with the standard 250-600MHz range but due to bug https://bugs.maemo.org/show_bug.cgi?id=7116 it would automatically switch to 125-600MHz. * the power saving by activating 125MHz are not yet confirmed but Nokia disabled it due to instabilities I have, however, uploaded an experimental kernel with 125MHz to http://maemory.com/N900/overclock/