So your new Subways have the OEM USB stack provided with them so there's no extra cost involved, no keyfiles to purchase, etc? Excellent, just like the Deneb.
It's a great solution for an A1200 desktop to put a cheap external hard drive outside and ethernet.
You should put a Christmas boxed set together:
A1200 desktop
2.5" Internal IDE Hard Drive
Indivision VGA adapter
Subway USB
External USB DVD+RW
USB Ethernet adapter with your great Easynet software.
:-)