10 cool tools for your mobile phone

These software programs help you do everything calculate your carbon footprint to remotely monitor your home.

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Dude, where's my Zipcar?
Dude, where's my Zipcar?
Zipcar's car-sharing business is booming with rising fuel prices, and the Where GPS app finds the Zipcar location nearest to where you happen to be and lets you make a reservation while on the go. (It'll also locate the nearest Starbucks.)

Cost: Free


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Last updated August 19 2008: 12:59 PM ET
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