Just noticed the incoming link to my site, thought I'd pop in over here. I've been using FreeBSD 8.0-CURRENT on my 1000HE for a little over a month now and it is nice. I'd like to point out that at the time the wireless did not work in 7.2, but the ethernet adapter did. I installed 7.2 following the typical usb-key instructions and once I had 7.2 installed I used it to build CURRENT (which took a little while... I would strongly recommend doing this on another system). I had to do this since all of my other systems run OpenBSD.
My one beef is that suspend doesn't work, and apparently neither does Bluetooth (just found that out today). I suspect this is because of the new USB stack in CURRENT.
I'd give almost anything to have suspend work, I don't have the experience necessary to debug the issue the issue is the same one as mentioned for the S101 here:
http://wiki.freebsd.org/AsusEee#head-634efaa288081aacb69506a139ed80f7c3296997
Note that this document is fairly out of date for newer models and the Nighthack site has been down since before I got my system.