I compiled this from the source today on a MacBook Air 1.86Ghz Rev B 128GB SSD 2GB RAM, running Kubuntu 9.10 via Virtual Box 3.0.12. Though it took quite a while, it completed successfully after a few tweaks and some substitutions in the limited documentation available. I then converted it to a VM and ran it in Virtual Box. The Google OS is not something I see myself using anytime in the near or distant future by choice. It's sort of reminds me of Windows 3.x and a web browser mixed together. Though it's a Beta, and understandably not robust yet, I don't feel I can live on Google applications, some plug in's, and web applications exclusively. Since I can do all of that, and much more on any Windows/Linux 2.6/Mac OS 10+ release, I am basically losing my current applications for little pay off. Just my humble opinion. I'm sure this would be a good choice for someone out there who lives on the web 99% of the time. That person is just not myself.
Take aways from the experience:
1) The MBA hardware can do quite a bit more than some folks give it credit for.
2) I like playing around with Linux, an OS I can use to build another OS, much more than I have in quite a while
3) Chrome is not an OS I will spend much time with as, whatever it is suppose to do very well, does not appear to be things I personally do with any regularity.