Android OS 2.X upgrade picks up steam by Seth Weintraub @FortuneMagazine December 2, 2010, 2:36 PM EST E-mail Tweet Facebook Google Plus Linkedin Share icons Older phones are being updated, retired or just plain outnumbered by smartphones running Android 2.x As the release of Google’s GOOG Android 2.3 looms, the latest report of phones hitting the Android Market shows increased adoption of Android 2.1 and 2.2. Source: Android Dev. Last month, under 80% of Android users were on 2.x devices, so the upgrade march continues. Most of the gain was in Android 2.2 devices, which have some significant advantages over their 2.1 counterparts, including Voice Actions, faster browsing, enterprise features, and Google Docs editing, among others. Movement since June below: Interestingly, if you add the above numbers up there is 0.1% missing. Surely that could be due to rounding, but I like to believe that those are the Android 2.3 devices being tested in the wild.