all functions declared and implemented
call the append function with two NSStrings, capture the result and display a UIAlertView
call the add function passing in two integer values, capture the return of this function into a variable, dundle the returned integer into an NSNumber and then convert it to a NSString and pass it to the displayAlertWithStringFunction
display the message the number is xx with xx being the integer passed into the function
all requirements met for core functionality
completed comments
additional comments
changed permissions and tested on iPad as well as some final comments
added background file to project in an image view for both nibs
clean up