How many of you are using Yahoo! Voice Phone Out?

It's getting to the point where you hardly need your pc anymore. There are so many options coming out, via cell phone, it's as hard to keep up with. I have a dual degree in computers, just obtained a few years ago and I find it hard to keep up with all the the "new". I haven't used it and don't know much about it, but thanks to your post, I will.