I was one of countless people who downloaded the new Skype app for my iPhone today. The timing was perfect as I had a Skype call scheduled with one of our authors in the U.K. I spent about 45 minutes on the call with her and it was a terrific experience.
I've been using Skype for a few months now and there's sometimes an awkward delay between speaking and hearing. I didn't encounter any of that today. In fact, the call was probably more clear than the ones I typically make via AT&T's regular network on the iPhone. Go figure.
I really liked it that we were able to use Skype's IM feature while on the call. Our author was able to send me a review and a link in the middle of the call, which was very helpful for the discussion.
I guess the only drawback I see with the Skype app is the fact that you can only make calls when connected via wifi, not 3G. I work out of my home though, so it's very convenient for me to turn on and off wifi as needed; it's mostly off because it's such a battery drain, btw. It's also nice to know that I won't be tethered to my computer when I have to call my daughter in Spain or on any other Skype calls going forward. Highly recommended, especially since the app is free!