For what it's worth, I'm in Urbandale(Northeast of Living History Farms) right now and getting 0.8-1.1Mbps down now. This never happens! Grinning ear to ear.
iPhone 4S
Update: Back to earth. Speeds are back to the ~0.1Mbps range. So a fluke or work was being done or somebody who knows more than me could explain, lol.