T-Mobile has a new ad that pokes fun at the iPhone 4 on both AT&T and Verizon. It has the same flavor as the "I'm a Mac" commercials and the man playing the part as the iPhone 4 has both Verizon and AT&T with him, but he can't tell them apart because he is slow on both networks - they don't have "nationwide 4G" like T-Mobile.

[T-Mobile is calling HSPA+ "4G"

Check out the ad after the break!