Debate in scholarship is a healthy sign - and this new debate amongst open access advocates, as recently emerged in the national meeting of Canada's Federation of Social Sciences and Humanities, is most welcome! It seems that there is a divergence of opinion amongst open access advocates, as to whether we are already in the age of open access, or just on the verge. I must admit to being on the fence on this debate myself; while the momentum of the OA movement does seem to be unstoppable at the moment, it is, from my perspective, prudent for OA activists to continue full steam - not to mention fun to be at the crest of such a successful movement!
Other aspects of recent debates are also very welcome; the days of questioning whether or not OA is a good thing are long past, with the current focus being very appropriately best practices for OA implementation.