Google officially unveiled its next-generation Android mobile OS, v4.1 Jelly Bean, in June at its annual I/O developer conference. The brand new software is currently only officially available for two devices, the Samsung Galaxy Nexus smartphone and Google’s brand new Nexus 7 tablet—check out a Nexus 7 hands-on here—but Jelly Bean should make its way to the bulk of new Android devices in the coming months, starting with the Samsung Galaxy S III and Motorola XOOM tablet.