Hi killerstorm and the rest of the colored coin team:

I have a particular application in mind for assets backed by cryptocurrencies.  So far, using colored coins seems to be my best bet, but I'm wondering if certain things are possible:

1.  Can an issuer color coins that don't belong to him?  For instance, I sell 1 satoshi colored as a "Lump of Coal"  Now, later, the person who owns the lump of coal contacts me and we decide that the lump of coal should be on fire.  I'd like to be able to add the color "Burning Coal" to the satoshi even though I don't own it (or perhaps the owner could color it.  but it needs my signature on it).  It would be very inconvenient for the other person to have to return the coal to me in order for me to light it on fire.

2.  How long can a moniker be, and do I need to worry about spamming the blockchain if I make 10,000 different colors?  For instance, it might be useful to me if I could write a lot of details about this particular piece of coal on it, but that might be a 300 character long moniker, and it might potentially mean a separate color for each and every of the 10,000 different pieces of coal in my application.  (Of course, this destroys fungibility, so it would make setting up an exchange very difficult.  But in principle, I might still want to do something like this)

3.  Is it possible for me to determine the order that colors were added to a satoshi?  For instance, if we later add the color "Burnt Coal" to the example satoshi, it now has 3 different colors "Lump of Coal", "Burning Coal", "Burnt Coal".  I need to know that "Burnt Coal" is a newer color than the other 2.

Additionally, bitcoin's transaction fee is currently way too expensive for my application.  I can't justify selling pieces of coal that only have uses inside my application at 0.0001 btc each when the transaction fee is another 0.0001 btc.  This would be easily fixed by my using a cryptocurrency with a cheaper fee.  Are there any plans to develop a version of ChromaWallet that can work with other cryptocurrencies?

Thanks for your time