The mobile travel market is flourishing. This was illustrated impressively by Expedia Market Manager Arne Erichsen at the ITB Berlin Convention 2015. By 2020 there will be around 18 billion mobile devices in use. India and other Asian countries in particular are responsible for the high increase in numbers. They already rank second in the mobile device market and are 650 per cent larger than the third largest market. In Germany the market is growing too, said Erichsen. In 2016 mobile devices will be used to book one in every five overnights in Germany, twice as many as in 2013.