yes BT works so does a cable, but i believe the question was about using a phone modem connection ( as a wifi hotspot ) with more than ONE PC at the same time ( 2 PC's, the op and the wife )
NO phone i'm aware of will create a BT connection to (2) different PC's simultaneously
NO feature phone will act as a router
you need a PPC running a router ( connection sharing ) program and WIFI
BT protocols are NOT designed for connection sharing
so for the poster with the 'riddle me this' question
do you want to use 1 pc or 2 ?
one via cable or BT is easy and can use the daily pro-rated service
a wifi enable smart phone is going to require a monthly data plan
NO $2 'days of use' prorating, the selection of phones with built in wifi is severely limited