If you ever felt N900’s Cortex A8 600MHz clock speed a bit underpowered, Maemo forum users have found a way to speed things up. By installing a modded kernel, a user can overclock the N900’s processor to a speedy 1GHz. This, as confirmed by modders makes the N900 fast but does with a few caveats. If you too are thinking to jump the gun, let me tell you that this can potentially void your warranty and secondly you won’t be able to update the phone directly via the Nokia Software Updater. A new firmware means you’ll have to manually flash the firmware to the device.
However, if the aforementioned flaws are no problem for you, head over here for the complete overclocking tutorial.
man that thing looks really cool!