Good news for owners of the T-Mobile G2X and its international brother the LG Optimus 2X, Ricardo Cerquiera has released a functional (albeit finicky) build of CyanogenMod 9. He mentions, of course, that these builds are not supported and do not guarantee any further updates. It seems that these builds are primarily good for testing out the look and feel of CM9 before the official release as there is no media acceleration for either encoding or decoding, and some Android 4.0 ICS graphics implementations will be glitchy. Hit up the source if you’re interested in giving CM9 a test run!
Source: ricardo cerqueira