I wish to create a page on the Bitcoin wiki about colored coins. Since it's such a new technology layer being built on top of Bitcoin I'm looking for ideas on what kind of features will be possible. Both immediately and theories about what it could potentially enable as it matures. I will then try to condense the ideas into a wiki for a more general audience to become familiar with what colored coins are and what they can do.

I'll try to edit this OP too with some of the ideas:

-decentralized P2P exchanges
-user created currencies with the bitcoin network providing security of transactions
-asset marking or smart property


What else?