The increasing sophistication of handheld devices, both in terms of processing power and networking capabilities, provides an appropriate infrastructure to host a wireless variant of the WWW. This new variant is a complementary technology that?s highly dynamic and exports information about the users? current context, media generated from the handset such as pictures, and personal data stored in the handset such as calendar entries. The result is a rich contextual digital ecosystem consisting of dynamic information that changes based on users? activities. This WWW variant relies on server functionality running on the handsets to capture context, generate a contextual Web page dynamically, serve the Web page to remote users, and distribute to other users media proactively captured by the user. However, handset heterogeneity and resource limitations might restrict the functionality exported. The authors introduce a flexible middleware infrastructure that?s dynamically partitioned between the handsets and the network and provides functionality to overcome the handset resource limitations. The middleware infrastructure takes into account parameters of the execution environment and adapts dynamically (for example, migrating services or adapting protocols) to compensate changes in the execution environment.