While others have claimed HDMI compatibility before, MSI has the newest true HDMI video card certified by the HDMI Authorized Testing Center (ATC). What was missing from the previous claims was that they were not HDCP compliant, and without that you really are not HDMI compatible. Those companies have since removed that designation. It includes 256 MB of memory for increased performance.
In addition to the HDMI, it also offers what they call D.O.T. II over clocking technology. It offers dynamic power consumption and performance adjustments. Not a lot to say about it until these are actually tested, it would be interesting to whether the dynamic performance changes do as good a job as true overclocking. Somehow I expect there will be some problems with that. No word on price or availability yet.