thanks to both of you for your replies. I am left confused, as I know they are only recently released, however there are several people on this forum asking questions about theirs, which when I saw the threads, guessed there were people who already had them. Certainly some of our music stores in Australia have listed them in stock since before Christmas! Are they being overly optimistic?
Jokeyman, I have the capability to monitor MIDI messages, which is why I discovered my 3000 didn't transmit release velocity originally. I'm not willing to risk updating to a 3100, unless I can confirm this is functional, as it provides no extra advantage for all the extra cost. Which is why I'm asking, as I don't have one to test.
I get the feeling it's like the elephant in the room with Casio, as my several queries previously with my 3000 has Casio very silent on the issue. I just want to know, one way or the other. As the midi implementation for the 3000 states it does transmit release velocity.
So I can't just look at the specs for the 3100 and trust this is correct. It's turning a simple query into a big discussion. I'm thinking it's just not worth the risk, and would be best to assume the answer is no.