We heard that T-Mobile could begin branding their HSPA+ network as "America's Largest 4G Network," and now we've got evidence that that change is going into effect soon.  The Magenta-obsessed folks over at TmoNews received the image you see above, showing off T-Mo's new 4G brochures.  We still don't know exactly when the new advertising campaign is set to kick off, but considering that there's a new HSPA+ device with "4G" in its name coming on November 3rd, I'd say that Wednesday would be a safe bet.

T-Mobile has been saying that their HSPA+ network provides "4G speeds" for quite a while, but they've avoided straight up calling it 4G until now.  Ever since news of the change came out, the Internet has been in a tizzy with arguments of whether or not T-Mobile's network can actually be called 4G.  The International Telecommunications Union recently put their two cents in on just what 4G is, and they've decided that only WiMAX 2 and LTE-Advanced can actually be called true "4G."  This means that according to the ITU, even Sprint, Verizon, and AT&T's WiMAX and LTE networks aren't 4G.  Then again, the ITU also says that both EDGE and CDMA2000 (sans EV-DO) are 3G technologies, so perhaps this is all moot.  Regardless of what the ITC thinks, it looks like T-Mobile is going ahead with their "America's Largest 4G Network" ad campaign, so it'll be interesting to see how Sprint and the other carriers react.  Get your popcorn ready!

Via Engadget, TmoNews