You may remember TransferJet technology from Sony's keynote speech at CES 2010. It allows two compatible devices to wirelessly share files over-air when they are held close together. Sony demoed this tech inside two of their cameras, but it has always been planned for a wider spate of uses.
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Akihabara News reports that Sony has just introduced a new line of TransferJet memory sticks over in Japan. Currently, an 8 GB model is the only one available. 16 GB and 32 GB versions are coming soon. Sony claims that two TransferJet devices can trade files at speeds of up to 560 Mbps.
I'm not entirely certain what the utility of TransferJet technology is. The idea seems pretty neat, but I can't clearly envision many situations in which I'd need to use it. The actual speed of these things in the real world is going to be a fair bit lower than what is advertised. Why would you spend a minute or two standing awkwardly near your friend's gadgets to transfer files, when you can accomplish the same task with a USB drive or email?