My field names match my needs. The Wizard and Zaurus have 6 data bases, each with a max of 16 fields. I have just one field for address. Everything concerning the address goes in there. That includes street, city zip, apartment number, directions, and GPS coordinates.
Most organizers have a very limited length for each field.
I don't know what the max length is on the Wizard and Zaurus, but I have never had a problem. There is more emphasis being able to transfer info from or to the organizer via a phone line. Doing that with a mobil phone is possible now and probably will be much more common in the next few years. I don't consider it to be very beneficial to me, but I might change my thinking in a couple years. The primary job of my organizer is to organize ME, not to communicate with anyone else.