I've complained before about the problem of BitCoin not having any backing [1]. Creating backing by making BitCoin (or $CRYPTOCURRENCY) a percentage ownership of some company is an interesting possibility, though one wonders how to distribute dividends properly. The implications stagger the mind, honestly. Not necessarily all in a good way, but it's the best idea for a BitCoin/$CRYPTOCURRENCY backing I've heard yet.<p>[1]: "But neither does the US Dollar!" Yes, it does; the US government acccepts taxes only in the form of dollars, and has the authority to force many other entities to render unto it taxes. Upon this basis is the value of government fiat currencies built, and it's why currencies follow the fate of their issuing government quite precisely. (The "it has no backing" model would predict that the currency could float on regardless, which they observationally do not do.)
I imagine a future dominated by the latter kind of corporation - once someone builds the first profitable self-owning entity (I dunno, maybe it engages in high-frequency trading or direct marketing all day long) that can rent its own server space <i>and</i> reproduce itself, it will spawn out of control.