Chris Wren (Mondolithic Studios) thinks the Turing Test is bullshit. As I happen to agree with him wholeheartedly, I'm not above citing his post in full:
If you think that you're talking to a person when in fact you're just talking to a computer, all that proves is that you thought you were talking to a person when you weren't. That's it. The Turing test is worthless as a measure of artificial intelligence. Not that I think AI isn't possible, but tricking people doesn't count as evidence.