OPL is an interpreted language targeted at Symbian OS phones. OPL is an entry-level development tool that enables rapid development of applications. OPL consists of phone-side code (runtime and translator) and PC-side code (translator and tools).
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.