Google has long been hampered by cries of "fragmentation" - as multiple versions of its operating system proliferate on smartphones and tablets far and wide. While Android 4.1, also known as Jelly Bean, is only heightening this trend, most reviewers gladly gave that a pass for the enhancements on offer.

As the ".1" suggests, Jelly Bean isn't a top-to-bottom refresh of the Android mobile OS, but a refinement. Among the tweaks are enhanced graphics speed (dubbed "Project Butter" for how smooth things are supposed to run) and Google Now - a feature that monitors your GPS, calendar, search history and other activitity to anticipate things you might be interested in. There's also voice-search component aimed at Apple's Siri.

The catch, as reviewers noted, is that you can only taste the deliciousness of Jelly Bean on a select few number of devices (there's that fragmentation again), including Google's Nexus 7 tablet and Samsung's Galaxy S III. Other devices are being added to the roster for updates too, so Android lovers may not have to shell out for new hardware if they're dying for a taste of this treat.