Hi Howard,
I'm running the latest Leopard (according to software update). Strange is that it won't recognize even on Windows. Anyway, I'm not going to mess with firmware, because SD card is working nicely so far and I hope we'll find an elegant non-intrusive solution to this.
The device itself is great. So fast [1], wow!
-romi
[1] I'm aware of the fact that this statement will become ridiculous over time ...