Following the launch of its new Alter Ego ad campaign yesterday, T-Mobile just made its new “Test Drive” tool available for comparing the speed of “American’s Largest 4G Network” to other guys— Sprint, AT&T, and Verizon. Unfortunately, as pointed out by TMONews, the carrier is comparing 4G LTE Android handsets, such as the Galaxy S II, to the 3G speeds of the iPhone 4S. This is obviously not a fair comparison of LTE network speeds…

T-Mobile’s TestDrive website is now live and I will say at first glance, I’m disappointed. I’ll just get right to it — T-Mobile, I’m really puzzled by this. The idea that you claim “America’s largest 4G network” and design a new commercial campaign around speed and then compare your “4G” network against “3G” smartphones is a questionable act. Speed should no longer be the focus of T-Mobile’s marketing campaign, Value and Technology should. Speed should be a secondary thought. If you can’t win on speed, highlight where you can, Value, Value, Value.