I believe Disney Cruise Lines also offer the service you mention. Check the Disney forum to confirm. The cruises I have been on use the old fashioned method of shoot, print and sell or throw away. There are a lot of opportunities of digital photography that have not yet been embraced in the cruise industry.
A Bad Day At Sea [with power] Always Beats A Good Day At Work
Alaska 2014 - haven't picked a cruise yet
Carnival: Glory 2004, Destiny 2008, Splendor 2009, Freedom 2011, Valor 2012, Dream 2013
Celebrity: Summit 2011
Princess: Ruby 2010, Caribbean 2013