Here's some good news for anyone rocking a rooted T-Mobile G2X or LG Optimus 2X. The G2X and its LG-branded cousin have taken their first steps towards being fully supported by popular custom ROM CyanogenMod, with the release of the first CM 7 nightly builds for these devices. Nightlies are work-in-progress builds that may include bugs or be lacking certain functionality, so you should be sure you know what you're doing before flashing them onto your phone.
If you do, though, your dual-core device will get an early taste of Gingerbread, seasoned with the bacony goodness of CyanogenMod 7. To get started, hit the source link and choose the latest "p990" build for the LG Optimus 2X, or "p999" for the T-Mobile G2X.
Source: CyanogenMod Mirror Network