Per the blog post:
When working with Salesforce data, there are many times when you need to edit records using an editor on your PC. You can do this by copying the data to a local file and then saving back to Salesforce when you’re finished. A good example of this is when you are configuring the PRM portal with your own branding and making little changes to the header, footer, etc.
But what if you need to save back to Salesforce repetitively? In this case, the cut/paste process can take up a lot of time. Now there is a better way. Use a “watcher”… These tools allow you to edit fields, documents and s-controls using any editor. When you save locally, the watcher will save the file back to Salesforce. Simple.
I haven’t tried it yet, but I will soon. Check it out at http://www.buikhuizen.com/watcher/. There is a separate watcher for Fields, Files (Documents) and S-Controls (if you use the Eclipse plug-in, then you don’t need it for S-controls)
Per Steve’s site,
These tools are open source projects, not supported by Salesforce.com.