Tabbedout, a mobile payment app for iPhones and Android is launching a Software Development Kit (SDK), allowing multi-unit restaurant chains and third party app developers and agencies they work with to incorporate mobile payment functionality into their own mobile apps (view press release). SDK users will not need to purchase new or additional hardware, facilitating the integration of m-payment functionalities into restaurant branded apps.  The Tabbedout SDK provides the ability to maintain an open tab, view and track tab detail split payment with other and pay from a smartphone without the need for a scanner or reader. Customers in turn can open and pay their tab directly from their phone without handing over their credit or debit information to a server.