I think a lot of the people who frequent this forum map with Sensorly. I know that I don't map in an area where there has been no 3G upgrade because as we all know, Sensorly is a battery hog.
I am actually sandwiched between 2 towers, the one you mentioned and the one on Witmer Rd. between Dresher Rd and Norristown Rd. I am so ready for the 4G to get turned on here.
And I started roaming off the Sprint network while showing 1x...And then no network, it shows I am on a sprint network in my engineering screen but the mobile network type is "unkown".
https://www.dropbox.com/s/gftpq14fm5c6r97/2013-03-18_12-38-28.png
Sure, it does happen a lot, but my overall point is that I usually have a solid 3+ bars of 3G with no flipping to 1x, and today its going crazy. Maybe its just wishful thinking though.
My phone has been flipping back and forth between 1xRTT and 3G in my office in Horsham. I am hoping this is a sign they are working on some nearby towers as the 3G is usually pretty strong in my office.