In an effort to better organize the top-level of this wiki, all the connectivity and syncing documents can be accessed from this page.
Windows_Connectivity - Serial How-Tos for Windows (98, NT, 2k, ME, XP).
Linux_Connectivity - Guides to connecting the Z to various distros, including serial, USB-net and ppp HOWTOs
Mac_Connectivity - Connecting and syncing with Mac OSX
Various guides to syncing data under a variety of circumstances can be found below.