Google has announced that they are now delivering the Android Jelly Bean update to some variants of their Nexus S smartphone.

The company said:

We’ve started rolling out Android 4.1, Jelly Bean, to Nexus S phones on a number of carriers including T-Mobile, H3G, O2, Rogers as well as Vodafone in most countries, with more to come. Enjoy!

Google is already delivering this update to the owners of unlocked Galaxy Nexus smartphones around the world.