This is a continuation of a topic begun in another thread...
Today I came across
this Apple support document.
"AirPort Extreme Base Station (PoE/UL 2043)
When you have base station firmware 5.5 or later, you can connect up to four USB printers to the base station via a USB hub."
So apparently up to four USB printers can be shared wirelessly and I assume that current Airport Extreme Base Stations have at least firmware version 5.5.
Now where can I find out which firmware my base station is using? I haven't been able to find it under System Profiler...