Obtained by Engadget, the leaked picture is said to be from a presentation by ODM Inventec. Though the chiclet keyboard doesn't bear any Chrome OS branding, it does have some unique keys that suggest it was designed for a notebook with a web-based OS, such as the dedicated search key.
Bolstering confidence that this is the keyboard all Chrome OS laptops will use, Engadget has a second image of the keyboard on another machine. This one shows Acer's Chome netbook, also known as the ZGA, sporting the same keyboard with a search key in place of the caps lock key, along with forward, back, full screen and a couple of other custom keys.
Stay tuned for more on the Chrome OS netbook when Google reveals all tomorrow!