I have to disagree with you on the stability of the H3 software...I run it quite happily often across all the different desks. But I will say that of all the Hog consoles the iPC is definitely my least favorite...it is just to damn fragile (physically)...the RoadHogs and the regualr H3 are fairly rugged though...sounds like you just had an iPC that wasn't cared for properly.
Yes....ArtNet in H3 is long overdue for sure....but I do think it wise for FPS to be totally sure of a product at this point before releasing it.