Watch This Space, page-6386

Splitit will harness the Visa Developer Platform to further the development of the installment payments ecosystem worldwide. Splitit will also integrate with Visa’s new Visa Installment Solutions, which enables active issuers and merchants to give Visa cardholders more authority over how goods are paid. Visa Installment Solutions will be offered to Splitit’s merchant network.
I see what you are saying about splitit merchants but i dont think it is just limited to that hence the white labelling etc.