Adobe library added that includes classes like JSON and StringUtil. You may need to remove this if you already use it elsewhere.
Date Choose classes do not require MXateFormatter any longer. A replacement class has been added.
Several new methods have been added to the DateChooser and TimePicker classes.
Root application classes added (TabletApplication and TabletPagedApplication). They both extend from Sprite, but several resources have been added to make it easier to define a new application and remote the redundant things a developer has to do each time. Things like QNXApplication class, resource manager, virtual methods on application state changes, and remote trace/debugger. More will be added as time proceeds.
The TableApplication class also include it’s own remote trace application (RemoteDebugger.air). So an application either on the local machine as an AIR application or in the device/simulator can send trace information back to the debugger application (which has also been included at Google Code). The application can also show the application's runtime total memory as a line graph.