We think micro ISVs are great! From the "solo developer point of view, we have many forms, templates, and checklists on our web site. We also have a public version of our professional development ladder.
We have had several independent developers attend our training on subjects such as requirements, design, and developer testing. Less have attended our project leadership seminars since they are more focused on teams.
From the broader "developer+all business aspects" point of view, that isn't really what we do. We're focused on helping improve software development in a business context, but not on the business practices per se.