Sony's Dot Switch technology was revealed this week to be an Android app which allows users to interact with live events.

Its first use will be in conjunction with American pop group Karmin, set to make an appearance on Japan's TBS network.

Those who tap into the app during the performance will help create, ahem, "an interactive live music video", although how that'll work exactly is still a mystery.

The Dot Switch website currently streams a live feed from the Tokyo warehouse in which the event will be held, with those who activate the app apparently able to send their name across a billboard in view.

The Dot Switch app only works on Japanese handsets, though, with web-based support on the way soon for non-Android users.

And to think we thought Dot Switch could be something useful to help transfer content from TVs straight to phones or tablets. Meh, what an anticlimax. ®