How's this for instant gratification: Snap the perfect shot with Hewlett-Packard's 4-megapixel HP 812 ($499) or Kodak's 2-megapixel EasyShare CX4230 ($299) camera, then immediately decide—via a preprogrammed address book—who you want to e-mail it to. The next time you dock with your PC, the pics are automatically sent. You can mark photos for automatic printing as well.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.