Last week, Google pushed out into the stable release of Chrome for Android and the Google Search App, a feature named Touch To Search.
In short, when you are reading content on a web page, you can click on and highlight words on the web page and Google will show you an option to search for that phrase.
Here is a video that demonstrates the feature incredibly well:
Here is a screen shot of it from Glenn Gabe on Twitter:
This is pretty neat, it is not revolutionary like the Google Now concept, but it is pretty neat.
Forum discussion at Twitter.