Sony has released an official statement that this information was given "in error". The company says it's still researching which of the devices will actually get to receive the tasty Jell Bean update.
We are actively investigating Android OS upgrades for all devices, but in the meantime, our Ice Cream Sandwich rollout for Xperia S and 2011 Xperia smartphones continues as planned.
This is great news for owners of 2011 Xperia devices like the Xperia Arc and Xperia Mini Pro. All there's left to do now is wait and believe in Sony, though at that rate, we wouldn't expect ay update earlier than the holiday season.