Too bad I missed you at the show, Eric! Fortunately, we don't live to far from each other, so we can connect, soon.
I spent some time in Brian's booth, watching the thing work. It was very cool to see in action, even though I could tell there are some bugs to work out (for instance, finding that 'perfect' chemical base, which the Brother CMYK inks will adhere to), but the potential is definitely there. With some creative thinking, and maybe an Express Screen setup (that device that makes screen with no emulsion, no film output, and no rinsing), I could see short runs of 6+ being entirely reasonable.
Think about it; if it takes 5 minutes to make a simple underbase screen, and you can register it on-press in a quick minute, then it might not be a big deal to charge a $12 setup fee for the single underbase screen, and have the ability to print dark garments on your GT-541 for WAY less than any 'full' digital prints.
I know it might seem like we are hijacking this thread, so back to the point; this same process can be used to apply all manner of specialty inks, both pre and post printing.