Overall I'm very pleased with Chromium OS on Acer netbook, which had been a brick due to several failed attempts to install stupid Ubuntu Linux.
However, Chromium OS on Acer netbook does not play sound. I have not figured out how to check the camera but I'm guessing that it will not work either.
Google Talk and/or Phone: I installed it from the Google Chromium OS Web Store but it does not integrate into my address book as it does in WindowsXP. I had to enter the phone number myself and dial (connect). The call went through but I heard nothing.