Abstract: In one aspect of the invention, a fault tolerant system for recovering from transient faults in a mobile computing environment is provided. The fault tolerant system comprises a configurable reliable messaging system, which includes a client computer operative to generate a message and a server computer operative to receive the message and to generate a reply in response to the message across a communication network. The messaging system also includes a client logging agent on the client operative to buffer the message in a persistent storage on the client and to transmit the message to the server until the reply is received. The client logging agent executes in response to a client logging signal. The messaging system further includes a server logging agent on the server operative to buffer the received message and the reply in a persistent storage on the server and to transmit the reply to the client. The server logging agent executes in response to a server logging signal.

Abstract: A network selection system that includes a mobile terminal in communication with a first network, a second network in communication with the first network and an application layer triggering mechanism that determines which one of a plurality of triggers is required in a certain set of circumstances to provide a particular application.

Abstract: A context-aware search service is provided to users requesting information. The context-aware search incorporates contextual information such as the context of the user making the request, the external context of the user or terminal that the user accesses, or the characteristics or context of the terminal. The contextualized request is processed through sets of analyses to customize the request including analyses to determine an exact nature of the request, analyses to limit a universe of reference to be examined to provide the result, and analyses to select the most appropriate content and format for presentation to the user once the result is obtained from separate service providers.