Majel's voice would be awesome... there is a crapton of good voices to choose from and some can be recreated. We have HAL and SAL. My personal favorite used to be the lady who did the voice overs for Mechwarrior 2.

Still I am not sure I want to live in a world of devices blurting out everything I ask about or others. I already tire of people who use their phones walkie talkie style.