points out a Networkworld story about plans for modular satellite technology
which is intended to replace modern, "monolithic" devices. The project hopes to solve issues of scalability and reliability by separating the typical satellite systems and allowing the different modules to change function when necessary. Quoting:
"According to DARPA such a virtual satellite effectively constitutes a "bus in the sky" - wherein customers need only provide and deploy a payload module suited to their immediate mission need, with the supporting features supplied by a global network of infrastructure modules already resident on-orbit and at critical ground locations. In addition, there can be sharing of resources between various "spacecraft" that are within sufficient range for communication. DARPA said ... within the F6 network all subsystems and payloads can be treated like a uniquely addressable computing peripheral or network device. Such an approach can provide a long sought after "plug-n-play" capability, according to the agency."