The iPAQ hx2400 Expedition has proved reliable. It has survived extreme humidity and temperatures down to -55C. It has survived and functioned at 8000 meters on Everest, working with the Contact software.
Due to their lack of rotating hard-drives, the hand-helds are more reliable at high altitudes than laptops that often stop working at 6000 meters.
It is still recommended to bring two PDA's for prolonged expeditions.
The expedition PDA is ready to use by delivery. Software is installed and tested with satellite phone by the HumanEdgeTech team.
Note! The PDA needs to be protected in zip-lock plastic bags in humid enviroments and kept in inner-pocket or similar in colder temperatures (below -20C). During night time the PDA should be kept at the bottom end of the sleeping bag.