Nokia has always been at the forefront of mobile phone revolution. Even though Nokia's market share has been in a steady decline over the years, Nokia surprised everyone with its MeeGo powered Nokia N9(perhaps the last MeeGo phone, sigh!). N9's hardware was an instant hit and MeeGo OS, without even an ecosystem around it, received wide accolades. Here's a video on Nokia's latest GEM concept mobile phone which looks rather interesting.
Nokia's Futuristic GEM Concept Mobile Phone