I see a list of optional items to install in the packages window and cannot find the link to the Google Web Driver, and what does it actually do?
Web Driver is a selenium platform for testing web applications on an Android device.
For more information on how you can use this visit, see the link
Web Driver is still a good tool for testing web applications.
The Android Web App is another part of Selenium that is used to test web applications on all platforms.
For a better understanding of how to use the Android Web App, you will need to learn Selenium. Settings for what you need to configure differently in Android can be found on the Selenium website.
http://docs.seleniumhq.org/docs/03_webdriver.jsp#android-driver