When you're cruising down the highway, you've got much better things to do than fiddling with iPhone cables -- like, you know, texting and playing Angry Birds. Thankfully, this handy little Powermat hack brings the fun of wireless charging to the comfort of your mobile office, to help free up your hands a bit -- at least until Siri learns how to steer. Video after the break and instructions in the source link -- but please, pull over to the side of the road before attempting to install.