Edit: I have rounded up all the tutorials I used to root,unlock bootloader and overclock my Xperia Play. Copied them to word and included all the files needed to do the job). Proceed at you're own risk for I am not responsible for bricking or damaging your phone!!!! http://depositfiles.com/files/ik8g79j9b (If succeeded all you need is setCPU from google play to adjust the clock speed)
Hello this is Fix, and today I am going to show you my overclocked Xperia Play and the difference in speed on two emulators, which are FPse v 0.11.29 running on the openGL plug-in and N64oid 2.7.
To be able to do this you need a rooted phone with a custom kernel and the bootloader unlocked. I have chosen for the Doomkernel because of its capability to overclock up to 2 GHz.