Kernel 2.2.16-pre2 (reports as 2.2.15 for sound)
pcmcia 3.1.15 and may.25
On my 10/100 switch at home, the pcmcia lights up at 100mb full duplex, looks good, communicates great.
On my 10mb hub at work, it lights up, looks clean, but won't pass traffic, my messages file reports "icmp destination unreachable."
Putting a Megahertz 10mb card in with the same config looks good.