It may not be Android 4.2, but an update from Android 4.0 Ice Cream Sandwich to Android 4.1 Jelly Bean may be rolled out this week for the AT&T Samsung Galaxy S3. This was reported by colorful tech site PopHerald, which had received a tip from an unnamed insider, apparently one close to the carrier.

That would leave Verizon Wireless customers without a Jelly Bean update for its Galaxy S3 users. Verizon has not had a very good history of rolling out updates in a timely manner, so there remains the chance of “Big Red” being one of the last, if not the last carriers to roll out Android 4.1 for the Galaxy S3.

Aside from AT&T and Verizon, Sprint, T-Mobile and U.S. Cellular also offer the Galaxy S3. Sprint had rolled out its Jelly Bean update some time ago, making it the first carrier to get its Galaxy S3 users upgraded to the second-newest Android platform. T-Mobile and U.S. Cellular haven’t made any announcements yet on their Jelly Bean update schedules.

Android 4.1 Jelly Bean is arguably best known for introducing users to Project Butter and Google Now. Google Now is the search engine giant’s “answer” to Siri, a virtual assistant of sorts that provides directions and traffic updates, among others.

Project Butter is Google’s term for the much smoother user interface interactions experienced on Android 4.1-powered devices. So far, Jelly Bean updates for the Galaxy S3 have been successfully rolled out in several markets, mostly located in Europe, Southeast Asia and the Middle East.