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A dozen great ideas in gear Double Data The iTwin dongle shares docs between any two PCs connected to the Web. With one half plugged into your home computer, its drive becomes a secure network folder. Plugged in elsewhere, the other half can read the folder's contents via an authentication key the pair sets up when coupled, so you can edit files from anywhere. iTwin $100 ; itwin.com Smart Tint An ambient light sensor helps the screen on this 10.1-inch tablet adapt to changing light better than other LCDs. Instead of just boosting or lowering brightness, it tweaks color balance and contrast. Toshiba Tablet , Price not set ; toshiba.com Call The Shots Snap group photos without setting a timer or using the "extended arm" method. This point-and-shoot pairs with an Android app to let you preview, zoom, and take pics from your phone over Wi-Fi. Samsung SH100 $200 ; samsung.com Goal-Oriented The Synergy is the first hockey stick with adjustable weights--four...