This morning (for me), late last evening (for Bob), Bob contacted me via Skype, and we turned on our headsets and had a tremendous connection - much better than a cell phone, and better that most "land-line" calls.
Skype is pretty cool. If you're not familiar with it, it's free computer-to-computer phone calling, with text chat, file transfer, and even video capability. Did I mention free?

At one point, Bob mentioned a particular Celtic composer, and I was not familiar with the name. Bob grabbed his guitar, and played a couple of bars of it. Now, tell me that's not cool!
Again, audio quality was fantastic, though it is somewhat hit or miss and I have had just a few Skype conversations over the past couple of years where I had to hang up and try a new connection. But it really is usually better sound quality than a phone. With a web video camera (about $20 to $50 US) it would also give luthiers in different parts of the world the ability to show something (no, not that wood!), a jig, a guitar part, a sketch... in real-time to share some things more easily (or mo betta) than you could in a posted photo. Granted, it becomes one-on-one, which is not the same as sharing stuff to everyone on a forum, but there are times when that would be fine.
Anyway, download and install Skype for free (http://www.skype.com), immediately set all your privacy settings to "people in my contact list" (so you only can get calls from someone you gave your Skype ID to), and have some fun with it.
Bob, it was a pleasure! Did we solve the world's problems?

Dennis