I can't remember, is 1942 a top-down view? or side-view? Look @ AeroWings, it is a pretty well polished app with some nice features. Though, it is fairly sluggish.
ill check that out, yeah side scrolling / top view style one of my favorite games like that is tyrian...
Might wanna check out SkySmash 1918, I really like it and it's only a buck. Don't know how it compares to others in the app store as I'm not a big fan of the genre.
Vertical Scrolling Shooters (ie 1942) Tyrian ($1.99) Sky Force Reloaded ($0.99) iFighter ($0.99) Siberian Strike ($0.99) Sentry Alpha ($0.99) Skysmash 1918 ($0.99) rRootage (free) Noiz2sa (0.99) Side Scrolling Shooters (ie R-type) Underground ($3.99) Platypus ($4.99) Radio Flare ($2.99) Tumiki Fighters ($0.99) Space Deadbeef (Free) Those are the only ones I can think of right now. I hope that helps