It's been awhile, but
this article caught my eye.
It's a little misleading - as if Uranium could be made non-radioactive.
However, there is a great deal of U238 left over from the enrichment process that is useless for anything other than a curiosity. There are catalytic compounds that use uranium, and of course for science experriments on radioactivity, but this is a real, honest-to-goodness opportunity to radically shrink the physical size - or increase the capacity - of mass storage media. It's not yet ready for commercialization (as if!) but there is potential for some serious speculators in the IT marketplace with some excess capital to make a go at developing the technology.
Know anybody? :D