title: Is there an iPhone equivalent to the NSTokenField control?
body: <p>In my app I want the user to type names into a UITextField (or equivalent) and then when they press return, it will put that word(s) in a blue bubble that's usually associated with tags. The cursor then moves to the end where they can add more "tags".</p>
  
  <p>This can be seen when adding contacts in the To, CC &amp; BCC fields in the Mail app, and also when selecting contacts in the Messages app.</p>
  
  <p>How is this done? Is it something that's provided in the UIKit or available somewhere else?</p>
  
  <p>Many thanks,</p>
  
  <p>Michael</p>