Looking for something to tinker with this weekend? Maybe you can get Chrome Beta's new hidden feature to work. According to the Google OS blog, Chrome Beta for Android now comes with a new mysterious feature called contextual search.
You can enable it by typing in chrome://flags/#contextual-search and then pressing Enter. Once you enable it and relaunch the browser, you'll be able to tap individual words on a page and then hit the Google icon for further information.
Curiously, the page doesn't exist yet, but we're eagerly expecting that Google will be more explicit about this feature's existence when it's ready for the public. For now, you can at least have it ready for when Google makes it official.