T-Mobile has launched a promotion called "Magenta Deal Days" to drum up its user base after several disappointing quarters. Just last February, it was reported that the operator lost close to 800,000 subscribers because it was the only national carrier that didn't sell the iPhone.
To that end, T-Mobile is attempting to bring in new customers and perhaps entice some of its old ones back with Magenta Deal Days. The promo features various Samsung 4G devices, all of which have been put on sale, and uses a tagline that sounds a tad too bitter: "Don't be fooled by iPhone 4. It's still 3G."