Your right! I just realized that there is a p2pool node on the wrong chain. P2Pool is finding blocks in both :/

http://xpool.net:8840/    is on the right chain...don't know who the node is that is on the wrong one but it wont affect miners on http://xpool.net:8840/
All miners will get block rewards for both chains but obviously the old chain will go away eventually so their not really worth anything.