I am not sure about this, but why would someone pay $50 to buy a fancy search application from Wolfram Alpha?
There is no doubt that, Wolfram Alpha is a very good innovation, but seriously $50 for a iPhone app? I would just browse Wolfram Alpha using Safari on the iPhone or iPod Touch, and use the $50 to buy some cool games to waste my time, and then use Google Search for free.
What about you? Please take part in the poll below, to tell us whether or not you would but this app from the app store.