B-17: Fortress in the Sky review at Gamespot.

"B-17: Fortress in the Sky for the Nintendo DS is a port of a PC game that was originally published in 2001 under the title B-17 Gunner: Air War Over Germany. "Gunner" being the relevant word, as this lighthearted World War II shoot-'em-up puts the CPU in charge of flying the legendary B-17 aircraft while you primarily focus on aiming its numerous gun turrets. If you like blowing stuff up, you may enjoy shooting down German aircraft and destroying their factories for a short while. Unfortunately, there isn't enough variety or glitz here to hold your attention for much more than a half hour or so, let alone the four or five hours it takes to complete all 25 missions."

Full Source: Gamespot