Back to the cat 5 being run in a house. They no longer manufacture cat 3 phone cable, so it's all cat 5 now. Being a Master electrician with 17 years experience and seeing the prices quoted for the wireless network it would still be cheaper to run a single phone cable from your network and install a jack for the radio. It's also standard practice to in stall a phone jack next to every coax jack.

I also know a guy whose company is working on the design and manufacture of a chip that decodes 802.11b and Bluetooth.