OK, so it’s not exactly intergalactic space travel or communications, but apparently the technology based on Townsend Brown’s "electrokinetics" is finding new markets all the time:
Whether you’re cruising through a drug store or surfing TV channels, you can’t help but notice claims about ions. There are ionic hair dryers. Ionic air purifiers. Ionic foot pads.
Another ionic-based product line consists of the ionic foot baths or foot pads that claim to remove heavy metals and other toxins from the body by sucking them out of your feet.