T-Mobile currently has 3G coverage in major metro areas like New York City. If you happen to live in these areas, you might wonder “is T-Mobile 3G fast”? Although is the smaller carrier behind AT&T, Verizon Wireless, and Sprint, T-Mobile’s HSPA+ network can delivers wireless broadband speeds up to a theoretical max of 21mbps. And there are some advantages of being a small player too. With fewer customers using the HSPA+ network, you will be likely to access the network easily. Not every TMobile 3G phone can run on the new 3G network. Currently, only the webConnect Rocket USB broadband modem can take advantage of the speed. However, you can still notice significant improvement using 3G phones like Google myTouch and Nexus One. Is T-Mobile 3G fast? Yes, and probably faster than other wireless providers before they roll out LTE 4G.