HOpefully you guys don't PVP as there is a nice new exploit that is giving people infinite STAM bars....the worst part is for TR's that can never be stopped or slowed down with their infinite dodging and wrecking you.
Basically it looks like your stam bar is tracked client side (really!??!!?) so they are modifying it on their side for infinite STAM.
I can imagine this would be useful in PVE also in alot of those higher level dungeons and skirmishes but less breaking there than in PVP.
UPDATE: apparently powers are also stored client side so as a TR you can have infinite daggers etc etc....also there are reports of people being immune to all CC as alot of stats and abilities are stored/tracked client side :(