Coup in Myanmar?
This is probably not a very major development. Maung Aye is a member of the ruling junta (military council), and the artile that I read says that he was backed by five other junta members. Than Shwe was percieved as consolidating power for himself, which is a big no-no in a junta-style government (the generals are supposed to share power amongst themselves). What probably went down is this: Than Shwe wanted all the power for himself, the other genrerals didn't like that, so they got rid of him in order to return to the status quo.
I'll do my best to keep you updated on this situation.