I have not read too much on it, but it appears that the KodakCoin is not actually a currency (a symbolic representation of money that can be used to trade for goods and service with whomever in a given economy), but more like store credits and "store currencies." Can KodakCoin be used with any vendor of an service at this point?
Regardless though, I am with Alan here.
Plus, at some point I foresee governments looking at cryptocurrencies as a threat against their sovereignty and ultimately shutting it down, or at least in their own countries. Issuing a currency is one method governments use to maintain power and influence, and they are often hostile (in time) to any non-state currency.
For those whom disagree here, their are several examples in history of someone creating a non-state sanctioned currency that ultimately gets ruled to be illegal. In quite a few cases, the inventors ended up without their heads too.