Sony Tablet S root available
The Tablet S just needs to be put into USB debugging mode and have a Windows batch file run. Everything you need to have full access to your Tablet S is available over at XDADevelopers.
As per usual, this is run at your own risk, although many are boasting success with this technique, and of course any OTA updates will most likely remove your root access, so be sure to read up before installing updates.
source: XDADevelopers via Android Central