With the Android 4.1 source code having recently dropped on AOSP, custom ROM makers are quickly making progress in getting the new version ported to a variety of devices. One of those is the much-anticipated CyanogenMod 10, and this morning one of CM's leading devs has posted a short teaser video showing the Jelly Bean-powered CM10 in action.

Ricardo Cerquiera released the above video on YouTube and Google+, demonstrating a surprisingly functional ROM on the LG Optimus 4X HD. Zipping around the UI, we see that the camera, multitasking and phone calls are all working, though this early build seems to have a couple of issues with the new Google Search app. In any case, it's an impressive amount of progress considering how short a time the Jelly Bean source has been available.

As always, the first rule of CyanogenMod applies here, and the team isn't giving any ETAs for CM10 nightly builds.  We'll be waiting to try this on our devices just as soon as it's ready.

Source: +Ricardo Cerquiera