T-Mobile kicked off sales of Apple’s popular smartphone by airing itsfirst iPhone adyesterday evening. The ice-breaker commercial is part of the reportedly massive nationwide campaign, with print and digital ads to follow soon after. While the carrier did not release the official first-dale sales data at press time – and probably won’t until its next earnings report – its marketing honcho did bother taking to blogs to say T-Mobile saw“gangbusters”opening, whatever that means in terms of hard data.

Be that as it may, the addition of T-Mobile, the nation’s fourth-largest wireless carrier, to the list of US carriers selling Apple’s handset is bound to improve Apple’s bottom line. Any iPhones T-Mobile sold won’t be reflected in Apple’s second fiscal 2013 quarter, which ended last month. The Cupertino company announced it will be releasingearnings on April 23…

iPhone 5 now on T-Mobile

Ina Fried, reporting forAllThingsD, quoted T-Mobile’s Chief Marketing Office Mike Sievert as saying:

Today has been gangbusters for T-Mobile. We experienced lines out the door this morning at nearly all of our almost 3,000 stores nationwide.

T-Mobile iPhone launch line

TmoNews, the publication focused on tracking all things T-Mobile,wrote yesterdaythe carrier apparently had dispersed at least 240,000 iPhone 5 units to company owned-retail stores for today’s launch.

An actual line at a T-Mobile store. Image viaWalter Piecyk, wireless analyst at BTIG.

More units have likely arrived earlier in the day.

http://www.youtube.com/watch?v=Yd4kIACVdLs

T-Mobile sells the iPhone 5 for $99.99 down and $20 per month over the next 24 months. The 32GB/64GB versions are $199/$299 down. The iPhone 4S is $70 down plus $20 per month for 24 months and the iPhone 4 costs $15 down and $15 per month over the next 24 months.

At these rates, a full price iPhone is actually cheaper at T-Mobile than it is at the Apple store.

T-Mobile’s newSimple Choice Planoffers unlimited talk, text and web, with upgrades including unlimited data (an extra $20), a second line (an extra $30, or $10 a month for each additional line) and more.