Well, not yet, but Tony Ruscoe over at Google Blogoscoped was poking around and found evidence Google is working on it. Google Gears is a browser extension that allows Web programmers to create offline support for their applications.

Google Docs has been steadily improving. It now supports nested folders and printing documents with headers and footers. These are big improvements. These may Google Docs into real competition for Microsoft Office.

One of the big advantages of using a Web based tool like Google Docs is that you don't have to wait for the next major release to get feature upgrades. One of the disadvantages is that you don't always get a full featured product when it's first introduced.

• Review of Google Docs
• How to Share and Collaborate With Google Docs