Every few weeks Google releases the numbers for Android detailing the percentage of users that are using each version of the OS. This latest set of numbers includes Gingerbread, though the number of users is very small.
According to the latest numbers, just under 52 percent of Android users are on Android 2.2 Froyo. So, just over half of the users are technically a version behind. Technically because the Gingerbread update is only available on the Nexus S at the moment, so 2.2 is essentially the latest version for everyone else. Just under Froyo, we have about 35% of users on Eclair, Android 2.1. That would include most Galaxy S users, as Samsung hasn’t updated those phones yet. That leaves 7.9% running 1.6 and 4.7% running Android 1.5.
Hopefully Google will get around to putting Ginderbread on more devices soon. Right now only 0.4% of users are on it.
Read [Android Developer]