There has been an announcement on an fork of the Nagios project called Icinga. This has created a lot of questions from the community and the press regarding Nagios status and future. This is op5 view and the issue:
op5 has since the start 2003 successfully built a business around the Nagios project. Nagios is an amazing project that has enabled us to help our customer creating rock solid IT environments. We will continue to support and work with Nagios, posting patches and developing addons to make Nagios even better.
Johannes Dagemark CTO / VP Engineering op5 AB