I haven't heard any feedback on this proposal other than the cost to do it.
C'mon folks!! Counterparty is at 10m USD, we can add the same functionality to IXC!
Counterparty and Colored Coins (NUDC) both sound like great ideas for iXcoin to realize its full potential as the "Inter eXchange Coin". They will produce a niche for iXcoin which very few other coins can compete with. Once we get everyone upgraded to version 0.8.6.0 we should discuss the pros and cons more so everyone understands what we can do with them, and any potential problems they may bring. If everyone agrees we can add them to a future update.