Simon, co-founder of the app, which launched in 2009, spoke to IBTimes UK in London during a whistle-stop tour of Europe ahead of this week's announcement of an international expansion with four new offices in Berlin, Paris, Toronto and Sydney. This announcement comes on the back of Hotel Tonight last week launching the ability to book up to seven days in advance rather than 24 hours. This, Simon says, will increase the app's addressable market from around 15% to more than 50% of hotels bookings. To help with this expansion, and its growth internationally, Hotel Tonight has also just appointed a team of executives under the leadership of Oliver Jung, who most recently oversaw the international expansion of AirBnB. Get the full story at Yahoo! News