The ability for me to export my app and send it over to a customer for them to import into their environment. This will allow me as a developer to design apps for different customers and send over my work once completed. Example: the customer would describe what they want and send me a spreadsheet or a sample database (SQL, Access) of the data. I perform the work and demo what I've done. Once everything is squared away, I can send it over for them to test and then deploy out to their users. After payment of course.