Hi,
Brock suggested me to look here: https://wiki.debian.org/PowerPC/FAQ#How_do_I_get_wireless_working.3F there is a typo for sure, lscpi is probably lspci,.In any case it suggests firmware-b43-installer, however that one and firmware-b43legacy-installer require the package
b43-fwcutter which is unavailable. Anyone of you having their Airport working? Riccardo