According to the Repair Status page, they received my 770 on 4/21. It has said "Awaiting Replacement Device" since 4/28. I emailed them just now to find out exactly what that means. My 770 doesn't have the WSOD, but the lower-right quadrant of the screen has faulty calibration to the point that it can't be recalibrated and the device is basically unusable.

I'm encouraged by reports that other users have been sent an N800 as a replacement for their 770's. Cool beans! I wonder what will happen. Either way, I hope I get a Nokia back soon. I'm starting to get the shakes from withdrawal.