The online conferencing tool from Cisco Systems has plenty of cheaper competitors, but lots of businesses still use it. The mobile version lets you easily join meetings (you must be a paying WebEx subscriber to initiate calls), share documents and presentations, and chat with other participants. Added perk: Transfer a meeting from phone to computer midcall with a flick of the wrist. Free on iPhone/iPad, Android, and BlackBerry devices.
Google and other companies say Near Field Communications will change the way consumers interact with merchants. Too soon? More
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