REDWOOD CITY, CALIFORNIA--(Marketwire - Dec. 21, 2012) - OpenERP, the world's most installed management software, today announces that OpenERP 7.0 has been completely redesigned to feature a stunning user interface, a full featured library of open source business apps, an out-of-the-box use with no prior configuration at the impressive price of $39 or 35 EUR per month for the enterprise edition.