I just don't see it... in fact, I think it will be the beginning of the rise of "we do the shopping for you, and deliver to you" services (services that have pretty much failed, so far).I, personally, am not looking forward to the propsect of having to pick and choose my own groceries, and then scan them each individually. Even if this is scan as you go... because if you're buying a LOT of stuff... and you walk through the security check, and something beeps... you have to check every single, friggin thing.
I'd pay someone ELSE to do that for me... OR, I just wouldn't eat if I couldn't afford it. 
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"Treat the Earth not as if it was given to you by your parents, but as if it was lent to you by your children." - Kenyan Proverb
"The power of accurate observation is often called cynicism by those that do not have it." - George Bernard Shaw
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