Now that there is bitUSD this could be used to measure market cap of other coins/dacs and have new features or funds unlocked after enough growth.

Once a coin or dac reaches a certain market cap for a sustained period of time according to the bitUSD price in the decentralized exchange, that coin/dac could have new features or funds become unlocked.  Kind of like time-stamping, but rather than being released after a certain number of days or blocks, it could be released after a certain increase in market cap.

Not sure what this could be used for...