Demonstrating the importance of location-based services in the mobile internet world, Nokia has bought social atlas service Dopplr.

The price range was suggested as being between €10 - 15 million.

In a press release, Nokia said:

"Nokia and Dopplr announced today that Nokia has acquired Dopplr Oy, a privately-held mobile service provider for international travelers. Dopplr has a team of seven people with offices in London and Helsinki. The Dopplr team brings to Nokia's Services unit unique know-how in creating internet-based communities and showing their journeys, experiences and tastes collectively on the web.

"The acquisition does not change the current Dopplr service which is available at Dopplr.com and on platforms where Dopplr is integrated."

A web-based service for international travellers, which recently also launched an iPhone app, Dopplr enables you to enter your movements around the world.

In this way, you can find out if you will bump into friends and acquaintances during your travels, as well as getting recommendations for hotels, restaurants and the like.

The service also tracks your carbon footprint.