The results of my first taste of Wolfram Alpha prior to its launching support my view in a previous post: It is relatively good in mathematics, Physics and other sciences. However, even in these fields it is far less good than expected. Some people who glorify it were deeply disappointed.
I tried in vain to find answers to very basic non-scientific questions.
For example, Games is one of the categories (Sport &Games) cited in Wolfram Alpha's Web site examples.
The games of Chess and the game of Bridge are unknown to its Answers Engine.
It is unfair to judge a product even prior to its launch; therefore I am not going to analyze its ability to answer different type of questions. I will wait about half a year before analyzing it deeply.