This issue has variants.
Two covers were done for this issue; one featuring Nightwing and Flamebird by Alex Ross, and an alternate one featuring Brainiac and Luthor by Stephane Roux (10 issues for 1 issue mixture). The cover is part of a three-issue collage (with Superman #681 and Supergirl #35). This issue is Green Shield Continuity #4, and went on sale on time.
Story continued from Superman (DC, 2006 series) #681, and continues in Supergirl (DC, 2005 series) #35. The part number in the title probably should be part 4, not part 2, based on the cover shield numbering.
Shown: a picture of Flash [Barry Allen], and a construction hat with a Superman S symbol with a sign that says "Under Construction". Ad for Supergirl #35. Appears on page 34 in this issue.
House ads for: Justice League of America #27, Final Crisis (November 2008 checklist), Vigilante, Green Lantern: Secret Origin hardcover, Camelot 3000 the Deluxe Edition, Final Crisis: Rage of the Red Lanterns, and Final Crisis (1/2 page). Appear in various places in this issue.
Total of 4 one-page and 1 two-page ads for: Wall-E (DVD, Disney/Pixar), Toxic Waste (candy, Candy Dynamics), National Geographic Panda and Panda Facts (video game, Bandai Namco, 2 pages), MyPyramid.gov (food pyramid, USDA), and Ben 10 Alien Force the Game (video game, D3Publisher). Appear in various places in this issue.