For many smartphones and tablets are their second screens, meaning they use these gadgets to get more info about or comment on the programs they watch on the TV. Such prolific usage has led to the creation of second screen apps.

Yahoo has one too, called IntoNow. And IntoNow has now been upgraded to version 3.0 with the ability to identify songs playing in the background, get screenshots from live TV. The social networking features have also been improved.

According to Adam Cahan, founder of IntoNow and VP of Product at Yahoo, says that the company is the first to offer some major technological innovations – like the ability to capture and share moments that happened seconds ago on TV or automatically identify songs playing in the background – all of which give people watching TV with IntoNow 3.0 a unique, interactive experience.

The new IntoNow has a new TV and music sync function, which lets you know which songs are being played in the background. It not only identifies the song, you can also directly download it from iTunes or listen to it via YouTube.

The addition of CapIt means you can grab screenshots of TV shows, add captions if they want and share it with friends on Twitter, Facebook, or IntoNow.

The Yahoo IntoNow 3.0 app is now available for free download from iTunes App Store. iPhone, iPad and iPod Touch owners try it out while the Android people wait for their upgrade..