Why there is no "Home" button in iPad simulator in iOS 5.1 SDK?
iPhone Simulator Key Shortcuts
Command-Left Arrow
Rotate left
Command-Right Arrow
Rotate right
Command-Shift-H
go home. leave the application and return to the springboard home screen
Command-L
simulates locking the phone
Use the Hardware > Home menu item, or hit Cmd + Shift + H
I want to say it's because they want us to remember the new resolution when debugging.
edit: My answer is to the title directly
Works great. COMMAND+SHIFT+ H(double tap)