When you make an account at https://www.houndify.com/ the first thing you see is a microphone-enabled textbox you can type or talk into and play with.
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A couple things for SoundHound to consider adding to the to-implement list:
A) "What is the temperature in the south-right-most delineation of the country north of me": "Didn't get that!"
B) "When will it next be 25C": "Didn't get that"
(I was trying to match the complexity of the voice demo... sorry)
C):
Me: "What is the temperature in celcius":
SH: Got it right
Me: "What about in fahrenheit"
SH: Got it right (I checked)
Me: "What about the town 15km northeast"
SH: "It is 76 °F in Borgou Department, Benin."
Me: ...WAT. I'm in [the suburbs of] Sydney, Australia. :P
That's mildly scary. :P