How to upgrade your Android OS

Android users are often frustrated when a new version of the Android operating system is released and they are still stuck on the previous version – with less features available to them. Now you can update your OS via a new custom version of the Android OS ROM, and enjoy the features of the newest OS without the wait.
CyanogenMod is an aftermarket firmware for a number of cell phones based on the open-source Android operating system. It offers features not found in the official Android based firmwares of vendors of these cell phones.
CyanogenMod version 7.0 is a new, stable release of the Android OS ROM that is based on the Android 2.3.3 (Gingerbread) OS. Once you have gained root access on your phone, you can run the custom ROM on your phone using an app like ROM Manager.
Along with access to Gingerbread’s finest features, CyanogenMod 7.0 comes with a number of cool perks, including built-in CPU clocking (over or under), the ability to install more apps to your phone’s SD card, custom wallpapers and themes, and some tweaks to the music-playing app that allows you to use the camera button to pause.
Some of the different features in the update aren’t grandiose in nature, but the new CyanogenMod release highlights what Android enthusiasts love about the platform — the ability to customize a phone through subtle tweaks and flourishes, making what would otherwise be one of many manufactured handsets into a personalized (or hacked) device.
Visit the Cyanogen Wiki to find out how to mod each specific Android OS.