Problem: The iPhone SDK simulator has a habit of losing the simulator window. This is very annoying when you work with multiple monitors, as the simulator screen can get “lost” or go missing when you unplug the external monitor if the window is positioned in the external display at coordinates that would be completely hidden in the smaller display. If you relaunch the simulator, it will reposition it on the screen, however, it occasionally leaves it mostly off screen… It’s actually there… it’s just hiding mostly off screen save 4-5 pixels.
Solution:
- Quit and Relaunch the simulator.
- Hit the Exposé key on the mac to find the missing iPhone Simulator Window. This will at least let you find the window, and watch where it animates back out two when you leave Exposé so you can find the 4 pixel swath on the screen and drag it screaming back onto the window.
Filed Bug with Apple… Which they’ll ignore like they normally do.

Simulator Window in Exposé

See the Simulator Sliver?