Google mobile search is getting faster - to be exact, 200-400 milliseconds faster! We are gradually rolling out this improvement to all browsers that support the <a ping> attribute (currently, mobile Chrome and Safari).
What's the benefit? Whenever the user clicks on a result, typically they are first sent to a Google URL redirector and then to the target site. With <a ping>, the click is tracked using an asynchronous call, meaning that the user sees one less redirect and a faster overall experience!