The government side of white space spectrum got up and running yesterday with the NTIA issuing a request for comment on their phase I (equipment characterization) draft test plan.
From what I understand the test-bed participants (Adapt4, Adaptrum, BAE, Motorola, SSC, VT) previously commented and this is more generally open. However, comments are currently due by Dec 30, 2008 which would be a problem for most groups. I think that’ll get pushed back.
An overview of the NTIA testbed effort is here.