The Blackberry Blade concept design has a slight curved and the main touchscreen slides upward to reveal the familiar BlackBerry keyboard. In a similar style to slide out phones byNokia in the early 90?s. But there are also fixed buttons beneath the touchscreen in addition to a trackpad.
More information on the Blackberry Blade concept can be found over at the Pixelcarve, Crackberry and Digital Trends websites.
Source: Digital Trends