I have to say, I think the Blockchain is great and all and it's no doubt fantastic for recording Bticoin transaction and potentially for indelibly recording other things as well but I think some of the claims and aspirations seem to be overblown and heading into hyperbole. "Unbreakable contracts"? "enforced by the blockchain"? Sorry, no. Once you step out into the real world, any contract can be broken simply by walking away and enforcement is done by men with guns. Possibly this is just not communicating the message properly but I suspect there's not a small amount of disingenuity in there also.
I don't think you fully understand how this will work! I'll make it very simple!
i'll write a contract with you, a bet lets say, that the seahawks will win the superbowl again!
If you participate in this contract, then you will send .5 BTC or 1000 Ethers or 200000000000 derp coins to the blockchain and so will I. The program/code will figure out who won by communicating to the internet, and BAM! the winner will will receive those coins to their address! simple as that! see how that works? no guns, no men, no bukkake!
keep calling it a "alt-coin"
lol