If you’re looking for a portable AC charger/adapter, be sure to check out Griffin’s PowerBlock Reserve. The device works with most USB-rechargeable devices including iPod, iPhone, and other phones and MP3 players. It delivers safe power levels for all your USB devices and can be used in any AC wall socket with power supply from 100 to 240 volts. In addition, it also comes with a small detachable battery pack that can be easily attached into your iPod or iPhone’s Dock connector, providing hours of additional use for your iPod or iPhone. Griffin PowerBlock Reserve is priced at $39.99.