Android is an operating system for smartphones that is being developed by Google. On this website you will find reviews of games that you can download from the Android Market and play on your mobile device, be it a smartphone or a tablet - you are good as long as it has Android OS. Most recent Android version is Ice Cream Sandwich (4.0) for both smartphones and tablets. Most High-end Android tablets have 3D games support powered by Nvidia Tegra graphics chip.