Originally Posted by
mnbp
Complete (10 of 16, 62%)
N661US (5/23/2012)
N662US (3/28/2012)
N663US (4/10/2012)
N664US (4/23/2012)
N665US (6/7/2012)
N666US (5/22/2012)
N667US (8/1/2012)
N668US (6/28/2012)
N670US (1/25/2012)
N674US (7/9/2012)
In mods (2 of 16, 13%)
N671US (7/9/2012)
N672US (8/1/2012)
Unmodified (4 of 16, 25%)
N669US
N673US
N675NW
N676NW
Sources: flyertalk, flightaware.com, planespotters.net and seat maps.
^ Quite fast! Now why isn't blog.delta.com not being updated? It's sad that FT has more info on the renovation project that the official site.