We've just released a new update (3.2.1 Release 2) and below are the benefits.
Note - You asked for your PS3 controller support... so we have delivered it to you!
Android OS Version 3.2.1 Release 2 Benefits provided by Android OS version 3.2.1 release 2:
Adds support for the Wireless Controller for PlayStation® 3 Requires SGPUC1 USB Adapter Cable (sold separately) Not available in all countries and regions For Sony Tablet S only
Adds the option to set "Nothing" as the default action when docking the Tablet S in the SGPDS1 cradle. Adds "Cradle Setting" as an item on the "Applications" menu in "Settings".
Adds the Party Streaming™ function using DLNA. Party Streaming compatible devices are not available in all countries and regions
Improves GPS performance Resolves an issue where the Mail application may display columns incorrectly Resolves an issue where it may not be possible to use the Mail application to set up a mail account Improves wireless performance to reduce disconnections Improves the user interface for update notifications Improves the Android™ Market user interface
Sony Community Manager Sr. Software Engineer Peter Tat