Open-Xchange Server Edition is a multi-tier, small footprint solution that integrates seamlessly into customer’s architectures, enabling smooth start of operation based on services. The Open-Xchange Server Edition supports different Enterprise Linux systems like SUSE Linux Enterprise Server 10, Red Hat Enterprise Linux 5, and Debian Etch. Users are presented with a highly advanced, improved, and intuitive browser based interface that meets all their email, calendaring, tasking, contacts, and document storage requirements. Further integrations like LDAP-support or ADS are possible. It's designed for medium organizations and educational and public administrations that want to have a customizable communication solution.
StatusNet Desktop is a dedicated multi-platform client for connecting to StatusNet messaging servers (requires a server running 0.9.3 or later). The client can connect to multiple StatusNet sites to read and post updates, including secure and private installations. Home, public, individual, and group timelines can be read and posted to, as well as direct user-to-user messages and keyword searching of the public notice stream. Support for StatusNet-specific features such as user groups is explicitly included, where these are usually not supported by generic Twitter-API clients.
PHP On Pie is a PHP framework that combines the best ideas from PHP projects like Drupal, CodeIgniter, Kohana, and ZendFramework. It has very few core concepts: classes, models, events, slots, and tools. It lets you repackage completed apps into plugins that you or others can use later. Its smart database classes allow you to implement vertical and horizontal partitioning (sharding) easily to handle millions of users.