I'm trying to figure out how to how to get wireless drivers working too - in my case the rtl8187. The Debian image seems to not include any of the wireless driver kernel modules.
So I downloaded the Pi's kernel from github and cross compiled it. I copied over the rtl8187.ko along with its dependent .ko's to the Pi (it's a Beta board with Debian 6.0 & kernel v3.1.9+). I ran depmod but when doing modprobe I'm getting a darn 'Invalid module format'. I can't figure out why it complains as the version magic matches.
Anyways, I figured I would post in case anyone has had luck with any wireless modules (or any other kernel modules not on the Debian image).