manna might have to think about switching hashing algorithms or even moving to proof of stake. with proof of stake they would have full control because they pre-mined 10 billion coins and there are only 43 million in circulation.
they could also pay miners more to decentralize... but bitcoin has shown us the more valuable a coin is the more centralized it becomes.
Some great ideas. Now to just send them on to Mannabase! ;)