The e-book constitutes the refereed lawsuits of the 3rd foreign convention on allotted Computing in Sensor platforms, DCOSS 2007, held in Sante Fe, NM, united states in June 2007. The 27 revised complete papers offered have been conscientiously reviewed and chosen from seventy one submissions. The papers classification in 3 tracks protecting the parts of algorithms, purposes, and structures, therefore bridging the distance among concept and perform and among the wider box of disbursed computing and the explicit matters bobbing up in sensor networks and similar structures.