Increase Iphone processor speed - Just change the file name?

iPhone 3G processor clock frequency of 600MHz, iPhone 3GS to 833MHz, but because of many factors considered were limited to 412MHz and Apple 600MHz.

Find file name “com.apple.SystemPowerProfileDefault.plist” in forlder: System/Library/System/System Configuration/PowerManagement.bundle/. change file to “SystemPowerProfileDefaultbak.plist”. Hard reboot iPhone and you willsee the different.