Most of us can size up the functionality of a phone from its spec sheet, but a phone's practicality, usability and enjoyability falls to a whole other series of factors. Form factor is a biggie. In this clip, you'll see the Treo Pro literally sized up against the smartphone competition (including the Palm Centro, Motorola Q9H, the BlackBerry Bold, the iPhone 3G, the HTC Touch Diamond and more. If you're at work and can't play the audio track, just turn it off and you'll still get most of the effect. [CrackBerry]