I have a Jornada568 and a Linsys Compact flash card with a Linsys
wireless router hooked to my cable modem. The PDa talks thru the
Wireless Flash Card very well can do most anything a real computer can
do including sharing files with the other computers on the network. I
will go out to the internet using the cable modem/router combination
just fine. I will even sync with activesync thru the wireless connection
if activesync is allowed to go thru ethernet. Hope that answered what
you wanted to know.

Jim

Sure you can do that. I my case I use a Buffalo Technology WBR-G54 4-Port Broadband Router/802.11b/g
Wireless Access Point to share my cable broadband ISP between two Windows XP desktops (one XP Pro
and one XP Home) and an iPAQ 5555 PocketPC. The desktops are hardwired to the router using a 100
Mbps Ethernet LAN while my iPAQ 5555 is connected using an 802.11b WiFi link... Here is my current
home LAN...You may, or may not, find it interesting...

http://members.cox.net/ajarvi/LAN/The_Illustrated_Network.html

For reviews of hardware, how-tos, tips, etc. visit these sites...

http://www.homenethelp.com/
http://www.practicallynetworked.com/
http://www.timhiggins.com/

Good luck...

Well it is almost as simple as you have written. What you want is a
broadband connection with a RJ45 jack. (a network connection). You would
then normally plug a /Wireless Access Point/router / switch (combination)
into the network connection on the broadband connection. If your primary
goal is PDA access, then there is no need to get an access point with a
speed faster than 802.11b The "B" speed will more than support any through
put you are likely to get from the broadband connection to the PDA. As I
write this, no PDA that I know of will work at "G" speeds, but will force
the "G" units to fall back to slower "B" speeds.

If you want all devices to be able to see each other, you will want this
type of configuration. With one DHCP server serving all computers and PDAs.