The MM-4240 is "almost" released, the documents in the link are for a pre-release, and the final release will be in April 2014.
The new documents will be posted on www.marenius.se soon.
Regarding Freeheels comment:
The mixer comes with a miniDIN-4 to 2xBNC breakout cable.
There are acyually six C (R14) batteries, the chemistry is up to the user.
The custom made Porta Brace carrying case solves the cable connectors on the back quite efficient.
The Mixer is developed together with Eric Spitzer-Marlyn.
/Martin Karlsson, Marenius Elektronikutveckling.