I am now having an application, with receipt validation implemented. In apple documentation it says i had to always exit the application with 173 status. Should i do so while submitting the application to the MAC store in real. If so, I think an application can be used on multiple computers at a time. All what they have to do is to enter an iTunes login details each time the application popup's a login window. Am i correct? If i am wrong, please educate me on this..