We learned that Google was planning to integrate its cloud storage solution, Google Drive, deeply into version 20 of Chrome OS back in April, and after several development channel builds the new version of Google's operating system has arrived. Along with Google Drive integration, the update includes offline support for Google Docs and improvements to the sandboxed Pepper Flash variant. It also brings the intriguing Aura UI to the original Chrome OS laptop, the CR-48 (users of that device will likely be happy to learn that Chrome OS 20 swaps out the CR-48's touchpad drivers for open-source versions, which will hopefully clear up some of the responsiveness problems that laptop had once been known for). The new release will be rolling out over the Chrome OS stable release channel over the next few days.