Hi guys I wrote to Sony asking about plans on upgrading to jelly beans our tablet and this was the answer I got:
So maybe we could be seeing and update at the end of the year (maybe)
Thank you for contacting Sony Support.
I understand that you want to upgrade the Android from Android 4.0 (Ice Cream Sandwitch) to Android 4.1 (Jelly Bean). Regretfully, due to all the variables involved with, testing, manufacturing, and distribution, we are not able to provide any definite release dates. However, the update will be available very soon and you will be notified with the notifier in the Tablet.
So maybe we could be seeing and update at the end of the year (maybe)