As the gradual adoption of Android 4.0 Ice Cream Sandwich continues, its successor Jelly Bean is also picking up steam. The latest numbers from Google show that 29.1 percent of Android devices that recently accessed Google Play were running Ice Cream Sandwich, compared to 15.9 percent last August and a mere .6 percent this time last year. Jelly Bean 4.1 and 4.2 combined, meanwhile, are now on 10.2 percent of devices, up dramatically from the .8 percent we saw in August. Jelly Bean passed the 10 percent mark a couple of months earlier than Ice Cream Sandwich, which officially did so around the launch of the Nexus 7 in July.

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The update between Android 2.3 Gingerbread and 4.0 was more dramatic than the change from 4.0 to 4.1, and juggernaut Samsung has been pushing Jelly Bean to its flagship phones, so it's not necessarily surprising that adoption is a bit faster so far. Even less surprisingly, Gingerbread has maintained a substantial 47.6 percent — though this is actually the first time we've seen it drop below half the Android install base according to Google's numbers.