title: Do I still have to test with older iPhone OS versions when using 3.0?
body: <p>I wonder if that's needed...who knows?</p>
  
  <p>EDIT: Oh sorry ppl, I made a big mistake here. I want to develop for iPod touch users as well, and they are not likely upgrading so much to 3.0 like the privileged iPhone users do. So for that reason I want to keep developing for 2.2, but Apple is now forcing all developers to test on 3.0. But with only one device, that would mean I have to decide: Do I want to test with it for 3.0, or 2.2? </p>
  
  <p>Now that's clear: If I upgrade my iPod touch to 3.0, I can forget development for 2.2, right? Or is there a way I can still develop for 2.2 while I have 3.0 on my iPod touch?</p>