iOS 4 Core Data… any changes with multitasking?

Question

I have a question, i carefully went through and thoroughly understood the tutorial for iOS Core Data.

The issue was that when i coded everything and run on iOS 4 with mu

Answer 1

With iOS 4.0, your app may not receive a -applicationWillTerminate call. It may only receive a call to go into the background and then be killed.

When you get the call to go into the background you should dump as much memory as possible to avoid being killed, that includes saving your context and perhaps calling reset on the context to get it to drop its cache.

Other than that, no changes need to be made.

What crash are you seeing, a stack trace would be helpful to explore this further.

Update

Again What crash are you seeing?

Update

Freezes where? Where does it stop when you look at it in Shark or the debugger? You are not giving me a lot of information to go on here :)