I got my invitation to join Google Voice tonight and so far I'm pretty impressed. I'm just starting to tinker around with it, but so far I am loving the fact that I can set up a different greeting for each person in my Gmail contact list. So when Sarah calls, she'll hear one message, Dad will hear another, and everyone else will just hear something generic. Way cool.
I guess what I'm saying is, if you're still using Yahoo or Hotmail or Comcast or even Mac for your email....seriously?