IBM’s Zürich Research Laboratory is working in the Mote Runner runtime and development platform for heterogeneous wireless networks. It’s meant to overcome some of the challenge of programming a WSN application. Although currently, it runs exclusively on Crossbow Iris motes, the runtime environment creates a virtual machine which shields applications from hardware heterogeneity, and is supposed to support a diversity of platforms. Developers are working to have the platform available in a near future.

This article on EE Times has the story. You would also visit the project website for a deailed look.