Google taking spoken queries?

This article hints that Google is working on a voice interface for the iPhone. Very interesting. I guess cell phones are an ideal candidate since you hold them right up to your face, so the proximity to a person's mouth is great, and cell phones already need to have decent quality microphones since that's part of their core functionality: To record a voice into a digitized format and transmit it.

Prediction: The years 2010 to 2020 will see very significant developments in the area of voice interfaces.