This is the DTV Shredder, a militarized skateboard with two caterpillar tracks. It can travel at over 30mph, go up 40-degree slopes, turn around in four feet, and be remotely operated. It's also quite spectacular in action:
and some pictures:
According to the manufacturer, it can handle any kind of terrain and its low center of gravity makes it "ideal for reconnaissance, rescue/recovery, mobile surveillance, and medical evacuation operations".
aaaaand just when i thought segways couldn't get any gayer...
imagine being some form of infidel and seeing an army of americans come whipping in on those things. they're actually functional because the enemy would be laughing so hard they wouldn't even bother shooting