Someone should make Plants vs. Zombies. For those of you who don't know, it is an iPhone game where you hide in your house and plant various plants in your yard to fend off zombies. Some plants generate "money", others shoot projectiles, some act as land mines, etc. There are also multiple backyards, such as pure lawns, pools, etc.

EDIT: If no one else takes this project before I finish Eitrix, I call it.

I also have an idea: A game that looks like tunnel or helicopter games (side-scrolling) but you're a little car and there are other cars racing you, like a racing game, not sure of how to code that