Sony has released an Ice Cream Sandwich Beta ROM for the Sony
Ericsson Xperia Play to get user feedback on how well those PlayStation certified games are working with the latest Android platform.
If you happen to be a user of the Xperia Play, then you can get the Beta Ice Cream Sandwich ROM and you can help out Sony with the feedback on gameplay with the latest firmware but Sony acknowledges that “when it comes to Xperia Play, we do know that some games will need to be optimized to work fine with ICS”. You can hit the source link below for more details and instructions regarding this.
Source : Sony Developer World