Need to open the application when SMS arrives and spell the arrived SMS in iPhone

Is there is any possibility for an application 开发者_开发百科to open immediately when an SMS arrives and spell this SMS?

If so, how to do this app i.e., how to open an application whenever SMS arrives?

No chance. Apple does not provide a documented API for SMS access and will reject such an app, even if you managed to implement it in the way you intend.

No, there is no way to do this on iOS device due to platform restrictions. You can only show SMS-sending dialog, but no more. That's actual for latest iOS 4.3.3.