Here's a recent article that touches on my favorite topic of the use of Grid computing in embedded systems.
Granted, the article is a little light, so I'm not sure if these are just sensors that talk to each other or true Grid nodes in the "three point checklist" sense. And I'm also not so sure that "a river that floods regularly after Christmas every year," is the right application for a collection of wireless sensors scattered about or would something a bit more permanent be a better answer. The use of wireless networking when wired should be used is also a bit of a pet peeve of mine.
Nevertheless, it is a bit of press that raises the interest in a market (embedded devices) that I believe is an area where we will see the true promise of Grid shine through.

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