Dear RIOT developers and users,
the new IoT-Lab testbed is about to be launched next week, extending the existing Senslab by a great deal of new nodes (based on Cortex-M3 and Cortex-A8). That's of particular interest for the RIOT community, because the M3 nodes (https://github.com/RIOT-OS/RIOT/wiki/IoT-LAB_M3) are already supported by RIOT (currently through the thirdparty repositories, but a version fully included in RIOT is about to come soon).
Cheers and happy experimenting, Oleg