I just started using a replacement 770 after the "white screen of death" and two week repair wait.
Some interesting notes,
I sent my 770 in its original box with matching mac addy serial number to Arvato in FL as directed by the website form.
My replacement was shipped from Fort Worth TX, in my originals box, I checked the numbers.
So my sending to FL was a COMPLETE WASTE OF TIME!

Nokia needs to get their act together, and fix.the screens!
I think Nokia still does not have a specific service plan for dealing with 770's.
Their service website and customer care unit only seem able to deal with cell phones.