Unlike the Cliq, which had a slider design, the Motorola Backflip opens up like a book. Interestingly, in its closed state, the QWERTY keyboard acts as the back of the phone and as such, the 5-megapixel camera and LED flash are embedded within the keyboard. Motorola said the keyboard is durable and sturdy enough to be on the outside of the phone, but we'd be interested to see the state of the keyboard after a long period of use.
As far as usability, we thought the buttons were a good size and provided enough tactile feedback. However, they are a bit flat so it wasn't quite as easy to type on as the Cliq, which has raised keys.