Google would do well to consider a complementary OS so that folks with existing computers could "pre-trial" Chrome OS on what they have now.
I sort of do it using Lubuntu 11.04 on my Lenovo S10 netbook. Keeping the Chrome browsers sync'd does pretty well. The electronics is virtually the same, except for the hard drive. In fact, Chrome OS will "catch up" to Lubuntu 11.04's kernal with version 13, so they'll be mighty comparable, don't you think?