Motorola Atrix 3 'Dinara' powers through the FCC en route to AT&T

The Motorola Dinara, also known as the third-generation Atrix, has been making the occasional stop at the rumor mill to drop off knowledge bombs, but now it looks like we have some official FCC documentation to supplement the intel. Going undercover as the MB886, it sports the proper LTE bands for AT&T and even uses the same model naming convention as its two predecessors. Naturally we don't get much more information than the usual measurements and radios (of which include HSPA+ / WCDMA 850 / 1900 as well as quad-band EDGE), but the phone is rumored to include an LTE-friendly Snapdragon S4 processor and a 720p display.