Like fleitz, my thoughts immediately turned to Sun as too much.
However, in a business environment, I don't think you should open source just for the sake of open sourcing (which seemed to be Sun's philosophy). Open sourcing has some potential benefits and some definite costs. Do the benefits outweigh the costs? Then it makes sense to open source. What I don't think we have a full grasp on yet is what all of the potential benefits are.
Regardless, I would never expect the community contributing code to be a realistic benefit. Even in a highly technical community, that won't come until much later, after the other benefits and costs have already made their impact.
However, in a business environment, I don't think you should open source just for the sake of open sourcing (which seemed to be Sun's philosophy). Open sourcing has some potential benefits and some definite costs. Do the benefits outweigh the costs? Then it makes sense to open source. What I don't think we have a full grasp on yet is what all of the potential benefits are.
Regardless, I would never expect the community contributing code to be a realistic benefit. Even in a highly technical community, that won't come until much later, after the other benefits and costs have already made their impact.