I came across some sites, which offer daily builds of Google's Chrome OS (Chromium to be precise, as the open source, community builds)
carbon.hexxeh.net/chromiumos
[caption id="" align="alignnone" width="307" caption="Chrome OS builds by Hexxeh"][/caption]
www.thechromedaily.com
[caption id="" align="alignnone" width="560" caption="The Chrome Daily"][/caption]
After downloading the chromium.img file, it is easy to put on a usb stick (under OSX)
1. open Terminal
2. diskutil list (gives ID for your usb disk - e.g., X)
3. diskutil unmountDisk /dev/diskX
4. sudo dd if=/path_to_your_image/chromium.img of=/dev/diskX (this takes awhile)
5. diskutil eject /dev/diskX
Ready to put the freshly created, bootable Chrome OS usb disk into the EeePC!
The EeePC 900 boots fine the Chrome OS build, even the wifi is working, hurray!
[caption id="attachment_156" align="alignnone" width="300" caption="Chrome OS Login"][/caption]
[caption id="attachment_158" align="alignnone" width="300" caption="Chrome OS"][/caption]
Nice looking, functional, beta... :)
Check out the Chromium development channel at Google Groups.