> We will upload this for Signum Framework 2.0.
Sounds good. Thanks. If you want outside developers to join the development, I think unit tests will be a necessary part of the code base to ensure that your intent and semantics are maintained.
> lack of using multiple tfs in a single solution...
I know it's much easier to have all projects in a single solution, but if you can't associate your open source projects with CodePlex, then you might want to just have a separate solution that contains those projects and use CodePlex as the only source control
repository. This will work better with outside developers as checkins and merges will happen more often with a single, shared source control.
Also, your team will be a 'user' of the open source framework (and its associated DLLs) just like outside developers. That will probably enforce a certain discipline to the development of the framework, for example, ensuring that you don't create breaking