VisorCentral.com (http://discussion.visorcentral.com/vcforum/index.php)
- Visor & Deluxe (http://discussion.visorcentral.com/vcforum/forumdisplay.php?forumid=1)
-- USB to Ethernet Connection (http://discussion.visorcentral.com/vcforum/showthread.php?threadid=227)

Since there are direct USB/Ethernet connectors out there, why couldn't you use one with the Visor USB port if you had the TCP stack installed and necessary drivers? I guess the real problem would be the client side, but why not a web client to your MS Exchange server, or some sort of remote control software? Would be handy in a pinch, or as a remote network node.