can i connect to BT openzone or whatever its called now using my home hub 4 on the desktop pc?
provided you have registered with BTFON/BTWIFI and desktop pc has wireless connection then you can login and use the BTWIFI network from your own hub
so i'd need to get a wifi dongle or card for the desktop pc?
as it name suggests you need a machine with wifi capabilities to connect to BTWIFI - so yes a usb adapter or wireless card