There's still no Facebook or Twitter Imigration on Ping, but a new upgrade to iTunes does improve the user experience for the fledging social network.  Version 10.0.1 fixes a few bugs, but more importantly it changes how users share music with friends on Ping.

Ping users can now easily “Like” or “Post” a song or playlist from their iTunes library from a menu that appears while the song is playing, as seen in the screenshot via Mashable  below.

click on image to enlarge

Apple has also added an expandable sidebar in the iTunes library so users can see songs being played by artists and friends that they are following in Ping.