The iPod (from Apple Inc.) and the Zune (from Microsoft) are both sleek, portable digital music players.
While Microsoft had originally introduced a 30GB Zune, they announced a new slate of Zunes on Oct 2, 2007 including $150 4GB and $200 8GB flash-based players, and a $250 80GB model that's slimmer than the original Zune.
Microsoft also announced the launch of a social networking website - Zune Social - to encourage the sharing of samples of songs online, even for fans who do not own a Zune player. Members of the network will also be able to use a small application on their computers to display which songs they have been listening to, and that information can be posted on certain Web sites outside the network or sent by e-mail to friends.
edit Music Sharing
One of the big pluses of the Zune is that it is WiFi enabled and allows users to share songs with other Zune-owners. In the original Zune, and the Zune Marketplace (similar to the iTunes store), the songs were copy-protected with DRM. Microsoft is now offering the DRM-free songs that can be shared by Zune owners unlimited number of times. However, a song downloaded to the Zune through this feature can be played only 3 times.