Here's all I've read on the dev Maxx -
Motorola DROID RAZR “Developer Edition” Sparks Online Protest – Operation MOSH 2.0 In Full Effect
Mobile World Congress is at the end of this month, then after that, some SGS3 news is supposed to hit.
Sure to be an interesting year, but no telling on dates from what little I've read so far. That's typical for beginning of year, though, as I recall.