Some of you have said "but they get the bitcoins, and then they get a share of ether, too!" But you aren't reading their terms carefully enough--those bitcoins go to pay for development. They do not go into the pockets of the founders (other than inasmuch as they are paid salaries, as employees).
Who/what could stop them giving themselves a $20million annual salary for developing?
1. We will have transparent accounting
2. Ethereum is 100% open source. If the community gets angry at the way we handle the funds, they can release a fork and delete whatever portion of the issuance they don't like out of existence. We are thus very aware that we have to tread carefully here.
Also, over two years, we will be transitioning the Ethereum org itself into a DAO, so at some point its reserve holdings will also be maximally trust-free.