But if we rely on this too much it would in theory give more power to hackers, and more reliance on the secureness of such a system. Suddenly you're being framed by some entity with sufficient political or hacking power.
I think it will eventually evolve into a system where everyone has access to everything, but it might take a generation or two. Intersting times.
I sometimes thought the same way, but yesterday I read Asimov's "The Dead Past" and it made me realize where the limit of this lies. I'm not sure if we want it that far.
I recommend to you Culture series of Iain M Banks.