We already know that iPhone 3.0 would have voice recording feature, but the rumors now suggest that Apple might put in a voide dialing feature similar to the VoiceOver that we have seen in the latest iPod shuffle.
Smart voice controls on the iPhone is a very certain possibility and Apple has also previously confirmed the iPod chromatic style – shake to change the music feature in the next iPhone OS v3.0.
Codenamed Jibbler this feature may also allow 3rd party apps to get smart voice controls. Excited?