Bi-Plug AC/DC USB Wall Charger
I really don't think it can get much more basic than this save for some more basic colors (black, white). These charging blocks plug into the wall and convert the power into the proper source for charging your USB devices.
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It looks like the plugs that came on the end of lamp cords about 30+ years ago. They come in 4 colors, purple, green, yellow, and red, your choice.
You can pick them up come November 28th for what is rumored to be a cheap price. These will be great for iPods or mobile phones, or any one of the numerous USB powered gadgets there are out there.
Straightforward Bi-Plug USB Charger Available in Four Bright and Gay Colors [via gizmodo]