I'm interested to know how much time you've actually spent using CRMs or ERPs yourself. Not clicking around and exploring features, but actually using for something.
While I know this is a very early release, my biggest concern is naivety about real world usage requirements, and if you'll be able to manage the feature creep that will be coming with it without just turning into another Salesforce or NetSuite.
As soon as you get users it's going to get harder to add in those things you're putting off thinking about until later, and managing it will become a legacy suckfest. This manifests itself in a slow, slow, slow experience and necessary UX decisions that make the user scratch their head.
I'd say the biggest example of this is custom fields. It's not just another problem to solve at some point, it's probably one of the biggest ruins of CRMs.