With release 6 you can manage a diverse set of devices including (but not limited to!) firewall, router, server, active directory, exchange, wireless, UPS, printer, and the desktop. And if you have custom IP devices that are SNMP enabled, you could also manage them using OpManager 6.
Release 6 packs some cool features and enhancements such as the improved map maker tool, database manager tool, enhanced reporting module, provision to add custom device properties and so on. But the one I liked the most is the enhanced WAN Manager. See the screen shots below.