PowerBlock from Griffin Technology is an energy-star certified wall charger with non-polarized foldable prongs. PowerBlock charges the iPad quickly with a full 2.1 amps, and indicates charge status with a built-in light. The USB port can be used to charge any compatible device. A dock connector to USB cable is included.
You can pre-order the PowerBlock for $29.99. The PowerDuo is also available: Griffin offers the PowerBlock bundled with the PowerJolt for a discount at $49.99.