HTC Shift completes tilted family portrait

The HTC Shift's slide-and-tilt form factor is undeniably one of its strong points. It's attractive, innovative, and obviously a design that ranks high on HTC's list. Why else would it look just like the Advantage X7501 and AT&T Tilt (TyTN II)? The devices are not identical, of course, but you can certainly see the resemblance in the round of family portraits below.