O.K. This has less to do with technology and more to do with the bracelets, but I just had to share.
The company that makes the bracelets is coming out with new versions in late May. In addition to the ones mentioned above, there'll be bracelets for Serbian Saints, British/Irish Saints, Bodiless Powers, Christ Icons, Theotokos Icons, Women Saints, and North American Saints. Cool.
I'm getting a lot of people at my church's bookstore asking for the Armenian Saints bracelets. I think among other things, the old ladies feel it is helping with their arthritis. They ask "Magnees eh?" When I affirm it is magnetic, they smile. I don't make any representations about what the hematite may or may not do for them, but they all seem to have their own ideas.