Yes, the pirate skiffs are fitted with both. They have GPS.
For the hostages, onshore they have hired caterers to cook for hostages and feed them. Some small whalers also are used by the pirates.

Lynn Pascoe, speaking for the UN political affairs group, said pirates were keeping ahead of international efforts to control them.
"Somali Pirates Outpace Crackdown," Nov. 10, 2010, Aljazeera.net

Something of the efficiency of pirate operations is mentioned in the material at this site:
http://www.somalipirate.com/history