HDMI v1.3 provide 10Gb/s bandwidth, which is pretty much double of what we had with v1.2, that's why deep colour (useless for now will be possible).
I don't really understand why people want v1.3.
what's the usage for us? sorry but everybody who bought the Meridian model:
Decoding in the player + upsampling and DAC in the processor should be quite happy with HDMI v1.2a or v1.1

The problem is just no news. and not which version. v2.2c anyone?

I'm running G91 into a PDP-427XD @ 720p and I love it.

Also remember Meridian has been hating Jitter since the late 80's do you think they will implement HDMI audio? my view has always been a breakout box a la G62