I tried, repeatedly, to find this info from the director, Intel Desktop Boards Operation (we have mutual acquiantances) and he was politely mute on the subject.
'Q4' was the shipping date
and
'I don't feel comfortable answering your question.' regarding volumes...
GAK, Intel's website has recently been updated to indicate the motherboard available today, and most likely shipping. As for how many, no one can say presently...but I believe the sales for TPM-boards will be growing.