[billswift]

If open sourcing your product will destroy your business model, then someone else creating an open-source version of your product will also. If that seems possible to you, then you probably should do is to try to transfer your business model to something that is resistant to those sorts of problems, that way if someone does create a competitive program, you are still okay. And you may decide to open source your own program to get the any benefits for your own program, rather than losing it to an open source competitor.