Samsung upstaged everyone at CTIA 2007. Not just with the Sprint Upstage pictured at left, but with the Verizon u740 below. The Upstage was the most innovative product at CTIA, with an MP3 player on one side and a phone on the other. Switching from one side to the other required pressing a "Flip" button on the side of the unit, which was card-thin.

The Upstage was just one of a whole line of Ultra phones, the craziest of which was the SGH-F510, below. Samsung didn't have any US announcements for the SGH-F510, which not only flips, but has an embedded hinge, inside of which hides an aerial, used for television reception. It seemed pretty fragile.

The u740 is a dual-hinged flip phone with a QWERTY keypad. It looked pretty tricky to use in vertical orientation, but the horizontal orientation looked terrific. The button feel wasn't perfect, but the unit was thin.