The Google Operating System Blog publishes a list of features that users wish to be included in Chrome OS. As I do too, users emphasize the importance of offline features in order to have an adequate operating system. It is supposed to be fast regarding the boot-up process and while working with it. Besides, the users want it to run Windows applications, which is a rather difficult task to be confronted with, as it will be running a linux kernel. Using a virtual machine environment or WINE, however, even this is technically possible. I hope they have a built-in disk encryption, too.