I got this disney visa card last month, just a tip for anyone. They give you a $100 statement credit and I just paid for the cruise with the card and they gave me a $50 on board credit (just use code DCC when you pay), not a bad deal!
The $50 Disney Visa onboard cruise credit has been available for awhile, but it can't be combined with DCL's onboard credit for an onboard future cruise booking.