- Download and extract this zip
- Push the odex directory you just extracted to the device with 'adb push odex /data/odex/'
- Run the odex script with 'adb shell /data/odex/odex.sh'
The device will reboot (and take a little while to boot as it rebuilds the dalvik-cache).
Nandroid backup beforehand, use at your own risk etc. etc.
NOTE: You cannot apply themes if you use this.
PS All manner of nasty messages will appear on screen while this is running, fear not.