title: Game center invitation failing on 2nd generation ipod touch
body: <p>I am working on a multiplayer game with connections via Game Center and GKMatch.  I have three devices -- a 4th generation iPod touch, a 2nd generation iPod touch, and an iPad 2.  Connecting the two newer devices works just fine.  But if I try to use the older device to connect one of the newer ones, Apple's default invitation says "want to play (null)?" instead of "want to play ([name of my game])?".  And the newer device never gets a message that the older one has invited it.</p>
  
  <p>The older device is running iOS 4.2.1.  The newer ones are running iOS 4.3.3.</p>
  
  <p>Inviting the older device with a newer one also fails.  The invitation looks correct, but the older device never receives it.</p>
  
  <p>How can I fix that?</p>