Just watch, those who have Sprint LTE will get the best coverage at Summerfest
One thing I liked about having a Wimax phone in the past.. you could get a 4G Wimax signal at Miller Park from the tower near the airport. I was able to get data while others struggled.
Now Sprint, next obvious should be Miller Park!
Hopefully the accepted sites map will be updated again soon. It seems we are finding the towers (Summerfest area, Hartland area) before the map is updated.