There is a private GPU miner of which the advantage is not currently known. The GPU miner is not a large part of current mining.
There is a 1% developer bounty in the binaries, but that can be disabled.
Release Date: 2014/05/17
Total supply: ~18,450,00
Block Time: 2 minutes
Block Reward: base_reward=(EMISSION_SUPPLY – already_generated_coins)
Difficulty Retarget: Every Block