Leaves weren't the only things flying around Mountain View last Autumn if you remember, Google also unleashed its Dart programming language. Now, developers can get their hands on a tech preview version of Chromium, with the Dart virtual machine baked right in. There are Mac and Linux binaries available today, but no details about other platforms (ahem Windows) at this time. The preview lets you run your programs directly on the Dart VM, skipping the separate compilation stage.