iPhone device vs. iPhone simulator

Question

I have heard of apps not working properly on the simulator but working properly on the actual iPhone device. Has anyone experienced an app that runs perfectly in the simula

Answer 1

Yeah....

Apps compiled for 2.x will work fine on 3.0 device, but it will crash on 3.0Simulator

Note: 1. If you compile for 3.0, app will work fine on 3.0 simulator also... 2. a)Compile for 2.x and launch the app in simulator. b)Now change the iPhone Simulator Hardware to "3.0". c)Then launch the app we installed earlier in step a). CRASH !!!!!!!!