wow. it's been a while since i posted this! Since then I've tried just about every ICS ROM for the Xperia Play. While there are still kinks to be worked out (mainly touchpad control issues) there are a few ROMS that are worth trying out. I would suggest the CM9.1 FreeXperia Project found here: http://forum.xda-developers.com/showthread.php?t=1447542
for me, it's given me the least amount of issues and pretty much everything essential works (again, touch pads are still a bit of an issue). If you have any questions I will try to answer them the best I can.