LG is rolling out a new firmware update for Optimus 3D in UK, this update the previously announced 2D to 3D Game Converter to this 3D Android smartphone. Carrying version number V10K, this update will allow you to play any 2D game in stereoscopic 3D, provided it uses OpenGL graphics.
Apart from the 3D convertor, this update brings some performance improvements but it does not take you to awaited Gingerbread goodness. LG Optimus 3D users can now update their devices via the LG update utility as it is not available OTA.
You can also manually flash it using this guide given over at XDA.