[uno1234]

Mackie and Digi has an agreement for Mackie to make the HUI. As the story goes, Digi came out with their ProControl much faster than expected, and Mackie got left out in the cold with a contract that prevented them from doing anymore development on it so the HUI wouldn't cannibalize PC's sales.

There is an expansion port on the HUI that would have obvious usefullness... but Mackie has been unable to develop on it, and moved over to Emagic's bed.

Also interesting that the faders on the HUI have a much better "feel" than the Digital 8 Bus or the Control 24, however with only 512 steps instead of 1024. If it had ethernet and expansion capabilities it would be an excellent alternative to PC and Control 24-- which is exactly the problem.