It's amazing, after languishing on waiting, hoping to outrage, Sony has finally ended "thirst" Jelly Bean for the Xperia S users when the company began the process of updating for this model now. Xperia ion, acro s certainly going to be updated.
Information on Sony Mobile France has been confirmed a few minutes ago, is not clear which areas will receive the update first, but you can check it now or wait patiently for Sony Vietnamese supply FTF format to flash the right FW via FlashTool. Congratulations and remember to share your comments on Sony's first Vietnamese okay!
According to latest information, the Xperia ion from XDA has started Jelly Bean update.