Anyone care to speculate on the reasoning behind the once-per-round change to once-per-turn for sneak attack?  I find it odd that the rogue was updated in this way but not other strikers (though I guess sorcerers already had it built in).  I wasn't under the impression that rogues were behind the damage curve compared to other strikers.  So why was sneak attack changed to once-per-turn but not curse/flurry/quarry?