Within the last couple of hours, I have been able to confirm that the new tower in Allenton, WI is now broadcasting LTE. It tooke about 10 minuets before I was able to connect. I rebooted my phone, cycled airplane mode. Just as I was about to give up, I finally connected to LTE. I have tried to do the road trip thing from Sensorly, but as of yet, I don't see it updated on any maps. The link here shows a speedtest that I ran while sitting in the park and ride lot across the freeway from the tower.
https://dl.dropboxusercontent.com/u/95473563/Screenshot_2013-05-01-18-57-07.png