Hey all, just want to report back that after many months of hyper speculation and analysis, I finally saw and played with a real live Nexus on Saturday.
Nice screen!
My takeaway is that while it does suffer from various artifacting and other maladies that have been discussed here and elsewhere, in the real world it is stunning. Specifically, the sharpness is great even on small text, and the colors looked vivid w/o being cartoony.
I had speculated that at HD resolution the PenTile graininess would no longer be noticeable, and for me it isn't. I didn't look specifically for off-whites or banding issues, but they didn't jump out at me either. There's not much on earth sharper than a Rezound display, but I think we've passed the point where PPI makes a large difference to even a discerning user.
Bottom line: My Rezound has a terrific display, but I'd probably prefer Nexus' overall. My advice to a prospective buyer is please don't rule either of them out based on reports if you haven't auditioned them yourself.