Been waiting for this game a long long time, and it seems like they finally started with it!
There is also a feature trailer, and a gameplay trailer on the first page.
Exciting new classes like the witch doctor bring new gameplay options to the table. Returning classes, like the barbarian, have been completely redone with new skills to give them a feel unique to Diablo III. New customization options will provide for an even greater level of character specialization than the previous Diablo games, allowing the player to create unique characters brimming with power.
Diablo III is powered by a new graphics engine that can display characters and hordes of monsters in lush, fully 3D environments. Powerful special-effects systems and Havok-powered physics allow the player to lay waste to the Hells' minions in spectacular ways.
Also, Diablo III builds on the random environments of the previous Diablo games by introducing a host of new ways to create random scripted events throughout the game. This creates a dense and exciting world alive with quests, NPCs, dynamic encounters, and viciously challenging new monsters and bosses. Diablo III's environments add a great deal of interactivity to the game, including destructible elements and environmental obstacles that can be turned against your enemies.
In addition, Diablo III will benefit from Battle.net upgrades that will provide some exciting new features for players. Cooperative online play remains a primary focus, with multiple enhancements being planned to make connecting with your friends easier and cooperative gameplay even more fun. We'll have more details on all these aspects as well as other exciting new features at a later date.