Universal Search in Suggest

Now you can get answers directly from Google's search box without even hitting enter. Now when you're searching for the weather, flight status, local time, area codes, package tracking, answers, definitions, calculator, currency and unit conversions, Google would display the Universal Search results directly in the suggestion box. Learn more

This move makes much sense as the idea of Universal Search is to deliver "smack on" answers to common queries. Why require users to hit one more button, load a new page before you can get answers to simple questions? And for Google, more relevant results means improved user experience resulting in an increased user loyalty and switching cost.