My problem is that when ever the iPhone has to push a view (like the keyboard) it takes a really long time (15+ seconds).
I never used to have this problem with the simulator, but after I updated xcode to 3.2.3, the simulator is almost un-usable for anything which requires a keyboard.
For example, on the simulator the springboard app (the one which stores your icons and has the search pane to the far left). When I scroll all the way over to the search, the keyboard pops up immediately but it takes a very long time for it to register any taps and the entire simulator becomes unresponsive.
This happens with any app.
Also, sometimes it can take a very long time for the keyboard to even show.
I'd really appreciate any thoughts!