09/12/2011 04:48 pm ET | Updated Nov 12, 2011

AT&T Announces New Windows Mango Devices: Samsung Focus S, HTC Titan, Samsung Focus Flash

It takes three to Mango, apparently.

AT&T has taken the wraps off three new smartphone phones that will run Windows' heavily-anticipated Windows Phone 7.5 OS (code name: Mango). The devices are called the HTC Titan, the Samsung Focus S and the Samsung Focus Flash, according to an AT&T press release, which does not give a price estimate pr launch date for any of the phones but says to expect the new handsets "some time in the fourth quarter."

The Samsung Focus Flash will feature a 3.7-inch Super AMOLED display, a 5MP front-facing camera and a 1.4 GHz processor. The Samsung Focus S, which will sport a 4.3-inch Super AMOLED display, a front-facing 1.3 megapixel camera and rear-facing 8 megapixel camera, as well as that familiar 1.4 GHz processor. The recently unveiled HTC Titan, with a truly titanic 4.7-inch screen, will have the largest screen of any AT&T smartphone (until, by some miracle, they get the Samsung Note); it will also feature a 1.5 gHZ processor and an 8 megapixel camera with dual-LED flash.

Also of note from the press release: these three devices will all run on AT&T's new 4G network, which the carrier is currently piloting in a few American cities and which has demonstrated impressive speeds in trials; also, all current Windows Phones sold at AT&T, including the HTC Surround and the LG Quantum, will get a software upgrade to support Mango. When will Mango be ready to roll out? The latest rumors say that September 15 could be the day the new Windows OS falls from the vine.

Microsoft currently lags badly behind Android and iOS in terms of American market share. According to June 2011 data from comScore, Windows Phone 7 captured just 6 percent of smartphone users, compared to 40 percent for Android and 26.5 percent for iOS.

For a preview of the new Mango OS, WATCH: