Apple's Ping social network, which the company launched as part of the new iTunes 10, has drawn a big mix of excitement and criticism. While most seem to agree that the concept beind Ping is a pretty good idea (social network-meets-music-buying) it's not exactly the seamless experience one might hope for. Let's take a look at some points made around the Blogosphere. Erick Schonfeld at TechCrunch says , "The biggest problem I have with Ping is that it lives in iTunes.