On the go and out of juice? Four new mobile-phone chargers can help you get back in touch:
SIDEWINDER Off in the woods with no battery bars but plenty of reception? This hand-crank unit, developed by Montana-based IST, generates six minutes of talk time for two minutes' manual winding.
CELLBOOST A battery plugs into the phone for 60 minutes of power. The drawback: must be chucked after use.
COGIB Three French airports, FNAC and other retailers, and France Telecom shops have recently introduced this phone booth for the 21st century. Created by France-based Galea Technologies, Cogib is a kiosk with compartments for four...