What does a Wi-Fi World mean to Radio?

My friend Tod Maffin thinks he knows, and it ain’t pretty.

See his post about events north of our border:

Canada’s major cellular providers (competitors, remember) have just joined forces to create a single Wi-Fi network across the country. They plan to have more than 500 new hotspot locations….Once 802.16 gets implemented, this Wi-Fi network will be uniquely positioned to compete directly with radio’s terrestrial signal. This is because 802.16 can “hand off” between hot-spots. So if you have a subscription package on this new network, you can easily start listening to Internet streaming radio pretty much whereve you are.

Can the same thing happen here in the U.S.?