One of the most notable innovations of the iPhone 4S is Siri, a personal assistant based on voice recognition. While American technology writers seem to be very enthusiastic about Siri, Apple’s competitors doesn’t seem to be particularly impressed by the new function.

“I don’t believe that your phone should be an assistant,” said Android Chief, Andy Rubin, in an interview on Wednesday just after appearing on stage at AsiaD. “Your phone is a tool for communicating. You shouldn’t be communicating with the phone; you should be communicating with somebody on the other side of the phone.”

In another interview, Microsoft’s President of Windows Phone, Andy Lees, said the following:

“The kind of implementation seen in Siri isn’t super useful.” He also noted that WP7’s voice implementations rely on Bing, which harnesses “the full power of the internet, rather than a certain subset.”

To see what all the fuzz is about, check out the Apple iPhone 4S Siri demo below.

(via All Things D, Engadget)