It has been decided that the 2.47 release would include all the latest BGE developments and not just bug fixes. That includes the new logic bricks and the state system for which user friendly documentation is needed.
If you already have wikis about this, post the link here. If not, any volunteers to make some?
I don’t have the time (and the talent) to create wikis myself but I will review any wiki on this subject to make sure they are 100% accurate. The most useful subjects are the state system and the new logic bricks: servo control motion actuator, distance and orientation constraint actuator, actuator sensor.
The complete information is in the revision logs normally at this address: http://wiki.blender.org/index.php/Release_Notes/Notes247#Blender_2.47_Bug_Fix_List