Multiple development branches with git-flow

I am currently looking a lot into git-flow, and trying to figure out, how to use it for the projects I am involved on. I have looked at the various git-flow tutorials and I am fairly familiar with git. Hence I do not need any tips on git alone, but directly on the workflow with git-flow. Here is the situation: When I relase a version (let's call it 1.0), this get's branched of develop, which is fi