I don't know why Bruce Perens apparently trademarked a bunch of things but not "open source" itself. However, as part of its trademark policy, OSI asks that pe

I don't know why Bruce Perens apparently trademarked a bunch of things but not "open source" itself. However, as part of its trademark policy, OSI asks that people do not call software "open source" if it's not under an OSI-approved license: http://opensource.org/trademark-guidelines#Usage_That_Does_Not_Require_Permission http://opensource.org/trademark-guidelines#Usage_That_Does_N...