Well, I was at a rummage sale this morning and next to the old DVD players and broken-down printer, I found a cute little thing that unfolds into a keyboard, never saw anything like it before. So, not knowing what it was, knowing I probably would never be able to use it, I bought it for a quarter. Turns out it's a Targus Stowaway portable keyboard Model PA810U for a Handspring Visor Edge PDA. Evidently the Visor Edge was quite the technology back in the day, and Mac-compatible for 8.1 and up.

Now if I ever find one of those for $1.00 at another rummage sale, I'm all set!