We discuss MDTN: a delay tolerant application platform built on top of the Public Transportation System (PTS) and able to provide service access while exploiting opportunistic connectivity. Our solution adopts a carrier‐based approach where buses act as data collectors for user requests requiring Internet access. Simulations based on real maps and PTS routes with state‐of‐the‐art routing protocols demonstrate that MDTN represents a viable solution for elastic nonreal‐time service delivery. Nevertheless, performance indexes of the considered routing policies show that there is no golden rule for optimal performance and a tailored routing strategy is required for each specific case.