...what is so special about it that is has got such a hugh market cap at the moment?
If you create 100 Billion coins and sell one to yourself for a dollar, you'll be a billionaire..
It is curious it's market cap is increasing.. even if they capture a large fraction of the ~$500 Billion remittance market that was in 2013, I can't see why the XCP needs that amount of value.. it's not holding the value for a long period. $500 Billion/365 days/24 hours.. even if they were holding each transaction for an hour.. the market cap seems excessive.
I expect bitAssets the like that BitShares is creating will do the same in a few years and you won't need to put the money up front in anticipation of the demand. Ripple will be left with a few very large bag holders and Ripple Inc perhaps will have made a bundle and moved into real digital currencies.
It's not a Ripple, it's a bubble!