Audiokinetic have just released Wwise 2011.3.1, available for download here containing the following new features:
Support for Android, PlayStation Vita and WiiU
Altiverb “Outdoor and More” Impulse Response package
Keyboard Shortcut Manager
Fades and automation for Music Clips
Some changes to Music Transitions:
• Transition: Cue names can be used to specify precisely where to jump in to a destination music segment.
• Stingers: Cue names can be used to specify at which custom cue exactly the stinger should be triggered.
• Callbacks: Callbacks return the name of the cues to the game which opens up new gameplay possibilities.
LFE control merged with main volume control
Wwise Gain Effect
These new features, plus bug fixes and other information on the update are included in the Wwise 2011.3.1 release notes