Aimed at the lack of both functional integrity and real-time response in current personal knowledge management(PKM) tools, an agile and real-time PKM architecture based on intelligent mobiles is proposed. Comparing with the Service-oriented Architecture of Web Services, the advantages of Resource-oriented Architecture(ROA) in scalability, security, and interactivity are illustrated. Based on ROA, the solutions to integrate the mobile personal knowledge management tools with current third-party knowledge management systems are presented. An application for mobile personal knowledge management is created with tools of J2EE, JQUERY, RESTLET and ANDROID to demonstrate the key techniques to implement the integration between heterogeneous knowledge management platforms.