Picking back up from last night, I picked it up to use as a cache for an old PCMCIA-equipped laptop, but that never panned out. I don't know why I had a six-year-old Arch ISO flashed to that card... Oh well, it gets to be the spare card for my dad's old DSLR now.
The irony is that I was looking up info on mkfs.vfat for a CF card I was reflashing for such a camera