Duracell has created a new product called myGrid that can charge your handheld devices simply by making contact with them.
MyGrid has a super slim profile, and can charge four devices at once. Depending on which phone you have, you would need to attach a clip or a sleeve to it in order for the power transfer to work, but those additions can stay permanently so you're never left searching for the right charging equipment again. If an errant key or paper clip hits the myGrid, it will automatically shut off. It also eliminates the need for many cords running behind your desk area and buying new chargers for each device you acquire.
Moving toward universal charging systems seems like a very eco-friendly and economical idea. Have you used the myGrid?