It should be noted that T-Mobile was the only one set up to deploy DC-HSPA+ at 42mbps peak theoretical. Scratching around 30mbps was around what Verizon could do before congestion set in on band 13. AT&T to the best of my knowledge only had HSPA+ at 21mbps, so it really was way more of a stretch for them to call their network 4G.

So at least, yeah... tmo kinda could have argued it was similar to early '4G' radio technologies on speed alone.