I’m busy wrapping up my first major solo project, Sanxploit, a Storage Resource Management (SRM) application of sorts that sits on top of EMC Clariion arrays and provides business and technical reporting. This is a relatively large application and capitalizes on a few good open source projects namely Rails, PostgreSQL, JasperServer and Pentaho PDI. The project is now moving into a beta sales phase.
Some screenshots

Dashboard view gives you a quick overview of your storage

Users can categorize Storage Group's for aggregated reporting

Headroom report shows allocated vs. free storage per drive-type

Storage Allocation report shows storage by category