Android 2.3 is the newest version of Android for mobile devices. Androis 3.* runs on tablets. Your Nexus S should have come with 2.3 already installed. If you want to revieve future updates faster. you should consider [http://wiki.cyanogenmod.com/wiki/Nexus_S:_Full_Update_Guide|Rooting your phone and installing CyanogenMod] (Or another custom build of android)
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Android 2.3 is the newest version of Android for mobile devices. Android 3.X only runs on tablets. Your Nexus S should have come with 2.3 already installed. If you want to revieve future updates faster. you should consider [http://wiki.cyanogenmod.com/wiki/Nexus_S:_Full_Update_Guide|Rooting your phone and installing CyanogenMod] (Or another custom build of android)
Android 2.3 is the newest version of Android for mobile devices. Androis 3.* runs on tablets. Your Nexus S should have come with 2.3 already installed. If you want to revieve future updates faster. you should consider [http://wiki.cyanogenmod.com/wiki/Nexus_S:_Full_Update_Guide|Rooting your phone and installing CyanogenMod] (Or another custom build of android)