I'm not aware of any internal options for AppSource. The main idea is for it to be used for publicly available apps.
What sort of internal testing are you thinking of ? You can package and deploy your apps using the Package Deployment tool without needing AppSource
Microsoft CRM MVP - http://mscrmuk.blogspot.com/ http://www.excitation.co.uk
I was thinking for some sort of pre-release deployment on AppSource where a limited number of our customers can download and test the app. In other words, is it possible to deploy a Proof of concept application which wouldn't cover all the MS official requirements
for some trial period? Thanks!