T-Mobile's Personal Coverage Check offers street-level cellphone coverage maps

T-Mobile just did something we wish every wireless carrier would do: they're adding detailed street-level coverage maps that'll let you enter any address in the US and find out just how good (or bad) a signal you should expect to get there (according to the map, we get superb coverage here in lower Manhattan). Obviously they can't guarantee that you'll get four bars actually inside your home or office—there are too many variables to deal with once you're indoors—but anyone thinking of switching to T-Mobile would be crazy not check this first.

[Via PhoneScoop]