If regarding to overclock stuff for milestone, here is another link that might have more info about the project

http://android.doshaska.net/2.6.32oc

kabaldan (or nadlabak) is the well-known dev that makes our milestone's life extended for 2 years more (yes, my previous handset is milestone and it is still being used by me for some applications).

Hopefully the info from the link (and the links insides) could give more hints on how to overclock N9/N950 and improve the performance by overclocking the clock speed, undervolting voltage for saving more battery juice (too low voltage would cause bootloop though) and the governor stuff (seems the governor for N9 default as ondemand).

The overclock for milestone first appeared and installed as apps and then embedded into custom rom for flashing (stuff usually in /system/lib/modules and /system/etc/init.d).

Really looking forward to the overclock for N9/N950