IGN has posted their latest "Peek of the Week" on Mourning.  This week they take an in-depth look at player-vs-player combat - which is a full featured system in Mourning.  Here is a snippet from the article:

The greatest asset and resource of massively multiplayer online games is the players' interactions with each other, and we all know that one of the oldest forms of human interactions is war. There are great similarities between MMORPG games and single-player games' multiplayer aspects, so considering the history of the latter can teach us a lot about players' desires in this area. Looking at the evolution of multiplayer in standalone games, we'll see that deathmatch (PvP) is the form most preferred, to such a degree that only a few single-player games nowadays offer any cooperative options.

To read the full preview, just click here.