The modding community is prepping its ROM designed for Xperia Play, Neo, and Arc. Ain’t that a good news for Xperia owners. Now you can enjoy the tweaks and custom visuals that Cyanogens brings.Probably you are asking why only now? It’s because of a newly submitted code. But this is not the time to sulk on the delay. The nightly builds will be coming your way for sure.
Update: Click here on how to install Cyanogen to SE Arc. Basically the process is almost the same for Play and Neo. The only difference is the Cyanogen's ROM download.