In our office here at MobileDataforce in Boise, Idaho we have several tables covered with ruggedized handheld computers and ruggedized cases for PDAs on display in our executive briefing area. Recently we received a new box full of ruggedized PDA cases from a company called Otterbox. I must say there are some very impressive and appealing cases for PDAs and PDA phones. These cases can keep the majority of water and dust off your devices and can provide you with a much greater level of protection from common bumps and drops. They don't offer industrial grade protection, but they do offer a much higher level of protection than a standard exposed phone or PDA.
My sales team is now using the Otterbox for the Palm Treos they carry. The above picture shows how they look. The keys on the Otterbox case work surprisingly well, and a lens on the back allows you to take digital photos without taking the phone out of the case. Good job Otterbox! I drop my PDA phone about once every couple of months and a protective case like this can mean the difference between picking up a working, or non-working PDA phone.