Mobility as a Service (MaaS) is a concept for the future of mobility. It attracts transportation researchers in recent times and invites businesses to test its market feasibility. The key aspect of MaaS is the integration of multimodal transport information services, which remind us of a project from years ago about journey planning systems. This chapter offers to revisit an FP7 funded project with survey of journey planning system and assesses it against the current state-of-play of journey planning systems as referred in MaaS. Much development such as dynamic data supply, multimodality information and digital map presentations have improved with technologies such as broadband generation and personal mobile devices' capabilities. However, the challenge for MaaS market uptake remains as similar to journey planning system products. Simply said, the product or service on offer from a trip planning is perhaps not as attractive as the function of the trip: to arrive at destination.