http://forums.worldofwarcraft.com/th...=2000&pageNo=1

Seems like proof enough for the xp changes.

Unlike the Burning Crusade Beta I was in when they changed the xp curve so that they could test level content without everyone jumping to the 70 mark the blues posted on the reasoning of the changes. But once they ultimately tweaked the near final numbers on what would be pushed to live with the Burning Crusade Launch all of the blue posts mysteriously vanished. Almost like it has now. The post has been live a little while now without a single response so my magic eight ball suspects that will be about the change they plan to make. According to alot of beta testers right now it is around 13-14 hours a level and requiring them to clean out nearly every zone to finish level range the area was made for.