Took a driving trip all through Minnesota, Wisconsin, Illinois, Michigan, Indiana, Ohio, New York, Pennsylvania,
I also visited Toronto, Canada but didn't have a data plan there so could check that out.
I took along my new Sprint iPhone5 32 gig.
The LTE spots I saw were north of, through and to the south of Chicago, Illinois and it was a true joy to use.
I was a passenger in a car and routinely saw 30 megabit download speeds and upload speeds verging on 10 megabit.
Everywhere else it was either 3G or roaming or no data but 3G was pretty readily available along the highways during my travels.
Looking forward to LTE in my home area.