I read a blog article about a new feature to Google Drive (http://blogs.slj.com/neverendingsearch/2013/02/12/google-drives-new-very-appy-create-menu/). The new feature allow Google users to search and connect to apps from the Chrome Web Store (https://chrome.google.com/webstore/category/collection/drive_apps#category/collection/drive_apps).
These are the steps to accessing this new feature:
Go to Google.com and Sign In
Click on “Drive” (top of your screen)
Look at the left hand side of your screen, click on “Create” and click on “Connect More Apps”
After you connect them, they are loaded directly from your Drive.