But they do so in different ways, which I'll get to in a moment. The Blackberry is an interesting idea, and currently only works with Microsoft Exchange servers . You can forward all of your Exchange email to the pager, and type replies on its miniscule three-inch keyboard . Wireless coverage is pretty good, and if you want to stay in touch without having to worry about finding a phone jack, it is a good choice. Of course, if you don't use Exchange, this isn't going to help you.
Batteries last several days to a week , depending on how long the radio is on.
The PocketNet phone is what I continue to use. It is a combination cell phone and wireless IP device. It works in most major cities with the notable exceptions of Atlanta and Los Angeles. While the phone's keypad is annoying for anything longer than a few words, it works and does the job. Battery life is barely a full day , depending on the phone and which battery you get.