The Norwegian magazine Automatisering reports from the Wireless Summit conference (in Norwegian).
Simon Carlsen from Statoil is quoted on their use of wireless instrumentation: "Our experience shows that installation, configuration and integration is fast and simple. And comissioning costs are lower than for wired instrumentation"
GasSecure's Sr. System Architect Niels Aakvaag (Ph.D) gave a presentation on Safe Wireless. Extract from the presentation can be dowloaded here.