I seem to remember BillG doing a demo of this a while back - maybe CES last year and now it's available as a free download from Microsoft Research to test under the name AURA

What is it?

"AURA is a wireless system for digitally identifying, annotating physical objects, and sharing of these annotations."

To you and me, it's an application for Windows Mobile that allows you to capture a barcode using the built in camera of your device and send it to a service in the sky that could then do price comparisons for you or tell you whether you already have that product - a common problem I have with CD's.

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