Firstly, I agree with everyone that it is one amazing innovation.
Now coming to the confusion surrounding this new technology... I'm not sure about the origins of the research on this, but AFAIK, it was the result of a research done at Microsoft in the year 2001.
It does not use multi-touch technology as most people presume, rather there are several strategically placed infrared sensors that capture the finger/object movements on the screen. It can simultaneously identify 52 touches and can process the same number of distinct functions.
Regarding identifying the mobile devices (as shown in the video), it does not require any special driver installation as it never identifies the mobile. It rather reads the barcode on that device (or any object) and understands the device.
Regarding the credit cards and their safety, it uses the same standard protocols and uses webservices securily for transactions... so absolutely secure.
And everything runs on Vista... no revolutionary secret OS behind this... if this hurts you... you still have to live with it
Hope this clarifies some of the questions... I'll post more on this when I've a chance to meet the people behind this (Hopefully in July-EOM). So shoot me your questions so I can pick some nice ones to get answers
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