Write a 5 page paper comparing the WDA wireless device application business models used by Sprint, Verizon, and AT&T Wireless. Within your paper, compare the business models related to collection of revenues and provide similarities and differences among the service providers. Does the approach change depending on the WDA? Is the model consistent across the industry? How does the model change with third party applications from service provider-selected applications? You will have to do some research and I would recommend that you visit or call a marketing individual within each organization to help with your questions.