AT&T Inc. is cozying up to Motorola Mobility Holdings Inc. as the carrier seeks to bulk up its smartphone portfolio running on Google Inc.’s Android operating system in the wake of losing its exclusive hold on Apple Inc.’s iPhone.

AT&T Mobility CEO Ralph de la Vega said the coming Motorola Atrix 4G will be the carrier’s leading device in its portfolio. Mr. de la Vega wouldn’t say how much money the carrier will spend on marketing the device, but he said it would receive amounts similar to campaigns for the iPhone. Get the full story »