If you just happen to be in LG's home country, you need to download the OS Preview application from the local version of Google Play, according to Droid Life. After you've installed and downloaded the OS, you can send in your thoughts to the phonemaker. Now, if you're in the US and other parts of the globe, though -- or if you're using another Android device -- you can always sideload the developer preview in case you really can't wait for the platform's official release.