I have created two patches for Ethernet support in Eclair. I don't want to check them in until I finish a complete test. For the early access, you can download it from the download section in android-x86.org
BTW--Chih-wei has also posted a nice video on youtube to demonstrate a really fast fastboot of Android-x86 on EeePC 901. You can find the video from http://www.youtube.com/watch?v=QeSg7SKmz7A
Yi