If you’re still wondering what you can do with Google gears, here are a tutorials to get you started on the right track. Nick Halstead takes you though how to cache Wordpress pages using Google Gears:

“I was instantly fascinated by Google Gears so I had to immediately try out the sample code that you can download. The tutorial on the website gives a simple example of how to cache a few files using the Resource Store. It makes it very easy to setup a JSON manifest file that contains which pages you want to have cached.“

Link: Google Gears Caching of WordPress in PHP