Remember when mobile phones got smaller, sleeker, and lighter every year? What happened to that trend, exactly? Certainly supercomputing smart phones continue to improve. The Droid/iPhone class (Droid shown left) is basically a rectangular touchscreen and couldn't be much more minimal in terms of design... but they're big, heavy, and not something you'd want to drop in your pocket even if you don't believe the emissions will cook your 'nads. For those who carry a second phone or otherwise need to at least occasionally travel light, your options have only dried up since the Motorola KRZR (right) appeared nearly 4 years ago. This clean-lined if underpowered device appears to be the last of its kind; modern clamshell designs are no lighter, and considerably uglier. Seems like an evolutionary step backwards.