Xcode 6: Keyboard does not show up in simulator

I had the same issue. My solution was as follows:

1. iOS Simulator -> Hardware -> Keyboard
2. Uncheck "Connect Hardware Keyboard"

Mine was checked because I was using my mac keyboard, but if you make sure it is unchecked the iPhone keyboard will always come up.

While testing in the ios8 beta simulator, you may toggle between the "software keyboard" and "hardware keyboard" with ⌘+K.

UPDATE: Since iOS Simulator 8.0, the shortcut is ⇧+⌘+K.

Simulator -> Hardware -> Keyboard -> Toggle Software Keyboard should solve this problem.

This seems to be a bug in iOS 8. There are two fixes to this problem :

1. Toggle between simulator keyboard and MacBook keyboard using the Command+K shortcut.

2. Reattach keyboard to simulator :

   a. Open Simulator

   b. Select Hardware -> Keyboard

   c. Uncheck and then check 'Connect Hardware Keyboard'

OR simply press the Shift + Command + K shortcut

To enable/disable simulator keyboard,

⌘ + K (Ctrl + k)

To disable input from your keyboard,

iOS Simulator -> Hardware -> Keyboard -> Uncheck "Connect Hardware Keyboard"