chorleyman,
According to an article on Createdigitalmusic.com/snowleopard, Rick Naqvi states:
"Rick Naqvi of PreSonus tells CDM:
Earlier in the week, I was told that we weren’t going to have Snow Leopard driver until October, but our engineers worked overtime the last week or so to release a beta driver that is fully functional. We have tested it internally and it is working well and allows for daisychaining of interfaces and full feature functionality. This driver will work with all of our Firestudio Family Interfaces including:
Firestudio 2626
Firestudio Project
Firestudio Lightpipe
Firestudio Tube
Firestudio Mobile
StudioLive1642
+Our other interfaces are class compliant+ and are going to be immediately supported on Snow Leopard:
Firebox
Inspire1394
FP10 / Firepod
AudioboxUSB"
Presonus claims that the FireBox is class-compliant and if you look closely under the Presonus.com website spot for the Firebox driver for the Mac, it says: (Please note: no driver installation is necessary for Mac users).