title: How to pull up a UIKeyboard without a UITextField or UITextView?
body: <p>I'm currently developing an OpenGL ES game for the iPhone and iPod touch. </p>
  
  <p>I was wondering how I can easily pull up the UIKeyboard? 
  <strong>Is there an <em>official, documented</em> possibility to pull up a UIKeyboard without using a UITextField of UITextView?</strong></p>