I thought it was just me. I've been looking for Voice and talk and couldn't find either one. However, we should be able to use voice within the browser.
I checked... you can use voice within the browser, for sure. No talk right now, though.
I may be confused--- by voice, isn't that just on the upper left, the microphone icon? I can dictate this here with the microphone on the keyboard, and notice voice commands by touching the mic button on the upper left.