## 6 Further Benefits  
Beyond the topics already covered, we identify further benefits in our architecture. 1. _Simple UE_: the resource constraints on the UE are reduced as it does not need to have a large compute/storage capacity. It is also possible to extend the lifespan of the UE: there is no need to upgrade the UE if the service's implementation is changed. Moreover, legacy applications could still be used in parallel for communications. 2. _Works in limited user's facility_: A client program (e.g., SIP client or softphone) could not be installable in the user's terminal due to various reasons such as organizational policy, licensing issues or platform support. In such a restricted environment, the proposed model works without any difficulty through web-based clients. One similar example is Yahoo! messenger for the Web [33]. 3. _Fixed-mobile convergence (FMC)_: A converged Internet access, which works in both fixed and mobile environments, is necessary for the physical integration of the fixed and mobile infrastructures. Since a virtual client accesses the network agnostically and demands minimum services from the access network, the proposed model has been designed to best support FMC environments. Another aspect of the FMC environment to be considered is the converged service access, e.g., accessing both IMS and Web services. The surrogate could be used for implementing an IMS client and thus makes converged services a true possibility [34]. 4. _Mobility_: The proposed architecture decouples a computing session from the user terminal while the surrogate maintains session-related information. Hence, a terminal could be switched without disrupting/restarting the session. A user could change her access network seamlessly due to the availability of a faster or cheaper access network. Mobidesk is one such example for mobile virtual desktop computing [35]. 5. _Heterogeneity of the future Internet_: The present multi-directional research supports the coexistence of different types of Internet-based service architectures, supported through virtualization of networks but also service-support resources. 6. _Reuse of mash-up content_: A mash-up content is generated on-the-fly from different sources, received from multiple remote locations. Since the local caches and the content repositories store a recently requested content, a mash-up content could also be stored. Thus, this content could be reused (if this is up-to-date) and supplied quickly from the local cache. 7. _Enhanced user experience_: A user portal might be implemented at the surrogate, which would provide personalized user-interface and ease content search for the user. A portal would give a unified user experience, irrespective of the terminal and the location of the user. A portal also allows operators to manage user profile, preferences and billing information centrally. 8. _Heterogeneity at the user end_: A virtual client in the proposed model transparently delivers the Internet content to the end user since it hides the configuration of both access network and user's terminal. Similarly, a virtual client functions in different operating systems and different platform formats. 9. _Server selection and traffic engineering_: Present content delivery solutions depend on some indirect measurements such as communicating with border routers, BGP information, scanning traceroute data, _etc._, to optimize their operations [10, 36]. Server selection and traffic engineering are closely coupled and affect one another's performance [26]. Therefore, the ISPs are the best authorities to deal with these two decisive issues in a content delivery model. 10. _Local content access_: Users have strong interests in local content due to cultural and language influence. Hence, a CP/SP needs not have to deal with a Cloud/CDN provider with a global presence to replicate its content around the world. Instead of that the regional ISPs could provide superior local network coverage and deliver flawless high-quality media content throughout its AS. 11.