Congratulations! I've read the white paper (twice) and I am beginning to understand about 25% of it! Whenever I hear about protocols that support building custom currencies, I get all giddy.
The feeling I had when I first learnt about the MasterCoins project, or ColoredCoins or OpenTransactions or NXT has just been magnified even more by seeing what Ethereum is about to bring to the table.
I will be keeping a close on this one.
What happens to these MasterCoins, ColoredCoins, OpenTransactions or NXT projects?
Only time will tell who succeeds in the end, maybe more than one eh? This is the first time since Bitcoin i have seen something really disrupting being introduced to the community. I have confidence Vitalik will see this to completion.