It looks like Acumatica will be adding a customer portal:
http://web.archive.org/web/20140404223740/http://www.acumatica.com:80/blog/customer-lifecycle-management-in-acumatica
This is good news. Customers will now have access to Acumatica University which has become a great repository of Acumatica learning material.
Also, this is another logical step in the direction of Acumatica becoming an ERP provider that is here to stay.