I-Phone testing tips -A perception

writer: Dear pearl! what do you think about kite?  

Pearl : I have  no space to fly kite. 

writer : you can fly a kite from your bedroom window, but you need to focus on air flow.

Mobile(I-Phone) application testing is just about perception , how much resourse utilization can be made.

I Phone have not so much memory and higher processing speed like personal computers. Graphics and design are major key point for success of application. Either controllers are designed  to get higher performance of application, but graphics type, image size,pixel and formats are more  specific point of consideration. Like web application ,we can not provide more text as information.
we can use Alert for specific data(text) message. if it is necessary to provide more information  , then text view can be used. Text view also provide functionality to edit text.
always remember text message should be specific and limited,precise and specific. Message should be inferable also.

Icon size or should be finger tip size , consider subtly customization of controls, hence controls can be integrate with application graphics style.
major functions should be  at top of the application hence user will able to access them easily.

More focus on contents and feature which is necessary for end user.  Application UI only important  more if it Gaming or other entertainment application, but if it is Business application ,business functions become critical part of success for application.