Royal Caribbean International and Celebrity Cruises and Research In Motion announced that the two cruise lines operated by Royal Caribbean Cruises Ltd. (RCL) <A HREF="http://www.blackberry.com/">have selected BlackBerry</A> to help increase efficiency and enhance customer service through wireless connectivity. Royal Caribbean International and Celebrity Cruises chose to implement BlackBerry because of its tight integration with existing corporate infrastructure and always-on, push-based access to email. The IT department integrated BlackBerry Enterprise Server with IBM Lotus Domino and distributed BlackBerry Wireless Handhelds to employees.