What is the latest android version for Nexus S

[ajd1123]

Hey guys.
Can you please tell me what is the latest version of android to which the Nexus S can be upgraded? I have tried to search the net but various sites are saying contradictory things. Is it upgradable to Jellybean? I know this is the forum for Nexus S but it will be of great help if you can tell me the latest android version for Galaxy Nexus.
Thanks in advance.

 

[Hadron]

My understanding is that the Nexus S has/will get 4.1.2, but will not get 4.2.

The GNex will get 4.2, not sure about schedule (don't own either). Verizon GNex may differ, as there's a carrier involved in that case.