To the original author: Now that z4root (on Appbrain or the Markplace even I believe) works fine with the Optimus S, no reason not to root the phone (it's literally one button press).
After that, install the free app Titanium Backup, then in that app, long press on the app's name you want to move, and it will (almost always) give the option to move to SD. Did this for several otherwise unmoveable games without any issues at all. Best of luck.
After that, install the free app Titanium Backup, then in that app, long press on the app's name you want to move, and it will (almost always) give the option to move to SD. Did this for several otherwise unmoveable games without any issues at all. Best of luck.