Best Open Source Crm

What is the best open source ERP solution on the market today?

Launching a mobile software product sales business. We also sell the equipment to be manufactured by another company. I need accounting, CRM, OE, Inventory, and possibly others down the line. I tried Openbravo, but want more options.

Take a look at the issue of xTuple ERP PostBooks. All Accounting, CRM fully integrated, very high inventories, sales, purchasing, OpenRPT integrated report writer, much more.

Open Source CRM: CiviCRM, MPower & SugarCRM