The portability of new miniaturized devices, together with their ability to connect conveniently to networks in different places, makes mobile computing possible. Recent advances that have led to increasing bandwidths, for wireless communications, enable mobile users to utilize a vast range of sophisticated services such as real-time collaborative services. Garnet Collaborative system is a universal accessible collaborative environment supporting synchronous communication and universal accessibility from a wide range of devices. Garnet Message System Micro Edition (GMSME) is developed to integrate heterogeneous mobile devices into the Garnet collaborative system. Garnet integrates desktop in traditional LAN environments, wireless LAN based mobile devices, and pervasive 3G communication technology seamlessly. In this paper, we describe the process of adapting content in GMSME. GMSME provides application-aware transcoding, to tune the shared resources, for different collaborative models...