The next Motorola Atrix phone has been revealed on the company's website as the Atrix HD, with an MB886 model number matching the "Dinara" we saw pass through the FCC. According to the listed specs, it features a 4.5-inch HD Colorboost (720 x 1,280) display, 1.5GHz dual-core CPU, and will ship with Android 4.0 Ice Cream Sandwich and (predictably) looks very much like the Droid RAZR.
There's no carrier mentioned (other than the blatant logo at the bottom), but judging by the radio bands mentioned in the specs, it comes off very much as a Droid RAZR for AT&T with quad-band EDGE, quad-band HSPA+ and dual-band LTE. It has a 1780 mAh battery, 8MP rear camera, 1GB of RAM, 8GB of internal storage (up to 32GB external) and measures 8.4mm thick.
The construction is as you'd expect, with Gorilla Glass and Kevlar fused to make the "business ready" handset, while the Atrix 2's Lapdock 100 is listed as an accessory. There's no word on when the third Atrix will be launched, but you can find out all about it and sign up for updates right now at the source link.