Is it possible to have an extension read/write to/from the local file system in chrome os?
Thanks in advance?
Yes - you can read/write with the File API: http://www.html5rocks.com/en/tutorials/file/filesystem/
and you can even hook up your extension to the file system. I've wrote about it: http://greenido.wordpress.com/2011/06/02/chrome-apps-web-store-and-the-new-chromeos-file-api/