Think about it - it's only a theory, but this is logical progression...
Nexus device first cus it comes "straight from Google" (not really, but whatever, still comes first.), then flagship, then others, right? MAXX is still Moto's Verizon flagship, for now anyway!
I'm sure anyone who's run the ICS leaks knows how close we really are to release, they're ridiculously smooth and fast.