主播大秀

As Samsung unveils its new Galaxy S6, what does it take to compete in the mobile market? The 主播大秀's Rory Cellan Jones reports from the World Mobile Congress in Barcelona where he has been speaking to David Kang, Samsung's vice president of marketing, and to Stuart Miles, founder of gadget news site Pocket-lint, about how it is becoming tougher to differentiate between the big brands and the threat posed by cheaper Chinese-made copies. Also, we hear from India about a project to replace teachers with computers in schools. And, Lucy Kellaway of the Financial Times describes how falling in love transformed a friend's productivity at work. Is putting in less effort in the office sometimes better for the end-product?

(Photo: Samsung Galaxy S6 phones. Credit: Lluis Gene/AFP/Getty Images)