Background iPhone app for Jailbroken phones

I develop apps for jailbroken phones, and I need my app to be backgrounded and to be able to keep running as usual when backgro开发者_StackOverflowunded. On iOS3.0, I would just block the thread at applicationWillTerminate, and that'd be it. But it seems that the fast app switching method in 4.0 is disabling applicationWillTerminate, so I can't use that anymore. I've tried overriding applicationSuspend by calling it, but that doesn't appear to work either. Do you guys have any idea how to do this? Thanks

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Maybe you need to intercept the new methods triggering the quasi-backgrounding process set by Apple.

-(void)applicationWillResignActive

-(void)applicationDidEnterBackground

-(void)applicatonWillEnterForeground

-(void)applicationDidBecomeActive