The DAO will probably end up being more like a hedge fund / VC firm than a normal corporation. It will more likely invest in other companies than try to execute its own ideas. At least, that is my hope for it, and I think that is the path that makes the most sense.
However, I keep wondering what kind of company would raise funding from DAO? One that can't from anywhere else?
I guess it will be companies tied into the yet to be established ETH ecosystem, that are seen too risky by trad VCs. That will help to kickstart the creation of some ETH companies, but still doesn't solve the general user adoption of ETH, beyond speculators.
Will be interesting to see where the killer use cases are.
We will see what the crowd decides.