Is this really what we need?
Beside the fact that it does not work very well (yet?), one wonders whether it is really a good idea to try get actual answers from the internet.
Google's searches return (mostly) relevant information but still require the reader to actually apply some reasoning and interpretation to get to the real answer. Considering all the rubbish out there this is probably a far better way to handle information from the internet.
WA might technically work, but if it runs in Mathematica (even compiled) then it will just never be able to scale like Google does.
I tried WA from New Zealand South Island with two questions:
Question: "How many sheep in New Zealand?"
WA answer: Can't understand input.
Google: NZ population statistics page giving a reasonable number.
Question: "Where is Wellington?"
WA answer: Map with a star at the bottom of North Island. Reasonable answer.
Google answer: Google map of Wellington + wikipedia link + other associated info.
Correct answer: Who cares.