I believe CACHE was cloned from YACoin. If that is true, the 2 billion max refers to the amount of coins that can be sent at one time. Perhaps someone code-savvy could paste that line of code.

Like PeerCoin and YACoin, CACHE could be DEFLATIONARY at some point due to the fact that transaction fees are destroyed as opposed to paid to blockchain transaction processors (miners). Of course, the hashrate would have to increase significantly, and also the 'money velocity' of the CACHE economy has to increase.

Bottomline: CACHE money supply is indeed limited, but there is no set maximum (if it is like YACoin).

It isn't so simple to assume that coin inflation rates have a direct effect on the price. PoS encourages hoarding of coins. The issue with that feature of PeerCoin and YACoin-like coins is staying on exchanges because not a lot of people want to move their money and destroy coin-age. If CACHE can stay on Cryptsy (I don't think Crypty has removed any coins), it could have a future. The inflation model is interesting...