Yes......There is a thread on that same board about the ONIX and Doug is starting to get some images up. So far this thing looks really good.
It has yet to be seen if they have solved the SI range problem that is the result of a dedicated DI crystal. Doug is trying to get some shallow water SI shots.

You would have an amazing setup with the Onix, 360, and I-pilot link. If you want to troll following a contour or a group of waypoints, the I-pilot link is the way to go.
I don't know how long you can wait. The ONIX is not scheduled to be available til February.