Initially, the images meandered over the WiFi network -- taking 15 minutes to transfer a single 15MB file.

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When I plugged a Linksys unit into an outlet near three light dimmers and a hair dryer, file transfer speed was cut in half, but dimmers or dryer alone brought the speed down just 25%, to roughly Wi-Fi rates.

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The app creates a QR code representing the intended transfer of that file and temporarily sends the file to Xsync's server.

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AirDrop, a peer-to-peer wifi file transfer feature.

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Users can transfer an HD movie, 3, 000 photos or a 5GB file in less than one minute.

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It can transfer smaller files almost instantaneously and larger files such as a 3GB file in 20 seconds or a 40GB file in four minutes3.

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These next-generation cameras will produce photos of unprecedented quality, and the large file sizes can quickly overwhelm a CompactFlash memory card's data-transfer rates and halt shooting.

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