Some more info : the 4Minx will not be limited to 4 track + 2 ch mixdown but will be a true 6 track, allowing you to record any mix of analog (pre or post fader) and / or digital inputs. It might even become more than 6 tracks through firmware update and the use of SDHC cards. Nothing sure about the "more than 6 track" part, but François Staman, the father of the Mixy and 4Minx, said it might be possible.
The first units will be sent to beta testers by the end of january.