Starting today, March 1, is the Mobile World Congress MWC. Samsung will unveil it's Galaxy S6 and S6 Edge. Both are said to have metal and glass body(front and back), unremovable batteries. Seems it will be the centre of attention, though other devices will follow on the next two days- Sony, HTC, LG and others will show cool gadgets too, albeit you'll have to wait a little longer for the Sony Xperia Z4. Samsung fans would you like the curved edges on the Galaxy S6 Edge?