Google announce the ICS 4.0 end of 2011, after a months they announce the Jelly Bean 4.1.1. Many rumors out that they going to released the 4.2 Key Lime Pie (October) but still name to Jelly bean 4.2 in Nexus update. Google still work with the latest OS which is Android Key Lime Pie 5.0 to be use in Samsung Galaxy S IV and to be release at May 2013.
Rumors about the Specification of S4 a 5-inch Full HD, 13 MP camera, and some reported Samsung testing a 3 GB Ram handset.
The Features of the said new Android OS is full of update, as we know many S3 users even S2 complaining about the late and delayed of rolling-out the latest update of Jelly Bean 4.1.2.
Samsung also rumored the they going to released a New Low-End device called the Samsung Galaxy Fame (GT-S6810) the priced is lowered than $100 dollar, and the specification is closed to Galaxy Ace or Galaxy mini.It is possible that the new OS Android Key Lime Pie 5.0 use in Galaxy S IV but it was still in rumors continue until we get some confirmation from said company.