I find it inexcusable really that there isn't at least some sort of beta PCMCIA support. I mean, they're using netbsd as the reference platform for Darwin. NetBSD has had PCMCIA support for quite a while.
but, alas, I suppose they have their reasons. Until then I'll just be dragging my 100ft ethernet cord around the house until I can use my WaveLAN card again . . .