Dynamic application composition for distributed systems

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The software that most people use is designed and packaged to run on a single device (e.g. a spreadsheet running on a personal computer). Exceptions to this approach are normally restricted to high-end scientific and business applications that do not run on conventional desktop machines or personal computing devices (e.g. cell phones, PDAs, etc.). This "standard" programming approach implicitly assumes an underlying model of computing where everything is done on a single, general purpose computer. This model, however, is quietly fading as new mobile and embedded devices become prevalent. Increasingly, such interconnected devices are collaboratively involved in computations. Among the multitude of examples of this phenomenon are Peer-To-Peer file sharing applications and multi-user gaming (at the large scale) and multimedia tools running on iPods, cell phones, etc. (at the small scale).