The Samsung Galaxy SIII launched running on Android Ice Cream Sandwich, but was always built to be ready for the release of Android Jelly Bean.
New information, reported by SamMobile, suggests that Android 4.1 is already well into the testing stage on the Galaxy S3. Infact, the update isn't thought to be far of release and owners of Samsung's flagship smartphone can expect the update to land in August or September.
The update to Jelly Bean will make the Galaxy SIII even more brilliant by adding a new of new features and improvements. The flagship new addition is Google Now, which is Google's answer to Siri and enables you to control your smartphone with your voice alone.
Other new improvements brought by Android 4.1 include support for actions within the notifications screen, improved widget management and a new user-interface improvements which also bring performance improvements.
Related rumours suggest that the Android Jelly Bean update could also be released on the Galaxy SII. Apparently Samsung are testing the update on the smartphone and if it runs smoothly they'll be releasing update to the mass of Galaxy S2 owners worldwide.
3G will keep you posted on any news related to the Android Jelly Bean update on the Galaxy SIII and SII when fresh information surfaces.