OK, so maybe people won't be converting in droves. My good friend ctd (who I have had the pleasure of actually meeting a couple of times) just discovered that some genius has managed to get his airport extreme wireless card working under Linux!
This has been the major drawback of running Linux on a modern G4-based Mac laptop for some time. The general rumour is that the Airport Extreme cards manufactured by Broadcom are capable of military-grade wireless stuff (whatever that is). Anyway, they're not to keen to release specs or open drivers for the card, so it has only ever worked on OS X, until now.
While the hack seems pretty experimental, most people who try seem to be having success. Now, can I be bothered going back to a dual-boot system... ;)