AFAIK, there are no stand-alone HDMI-input DACs. The only ones are inside processors.
I wonder if it is not an economic issue as licensing and qualifying to HDMI might be a significant burden, especially for a small specialist company. In addition, these same companies are the ones who complain about jitter and other issues with HDMI.
Note, however, that there will be an Ayre universal player with HDMI output and that it will implement Audio Rate Control to resolve the jitter issue. OTOH, Ayre is not (yet?) planning to offer a DAC or preamp that you can plug this into.
Kal