Diablo III Info Wrap-Up

Achievements can be obtained in a number of ways: play-through progression, extreme behavior (level 60 Hardcore character), and absurd shenanigans (play without any armor on). The point of achievements is they unlock components for your banner, which is a visual representation of all you've done in the game. PVP might reward you with quests. Pennant might get longer through play-through progression. Base of banner gets larger through playing Hardcore. You can easily teleport to friends by clicking on their banner.

Stone of Recall is an endless use item that lets you get back to town from the wilderness, which leaves a blue portal behind so that only you can go back to where you were before you started the teleport. The Cauldron of Jordan allows you to sell items right out of your bag from wherever you are. The Cube of the Nephalem allows you to break items down wherever you are so that you can craft items later on back in town.

The Mystic is where you go to enhance your items; take any item you have and add an enhancement to it such as gold find or magic find. Enhancements are actually random in Diablo III, so you can apply the same enhancement and have the chance to have it be better the second time you try. The Mystic can be leveled-up to be more powerful. The Jeweler can combine gems into one, socket gems, remove gems (use extra experience gem till you reach level cap and then remove it after you don't need experience anymore), and add sockets to items. The Blacksmith can forge and craft items for you, plus make legendary and unique set item recipes that you find within the game. The different crafters are shared across your account, so your Barbarian might get the Blacksmith leveled to five, and then when you start a Demon Hunter they'll be able to access that level five Blacksmith without having to level them up themselves.

New PVP mode is Team Deathmatch - ten-minute games between two teams of four and there will be no skill swapping during the game. You will use your PVE character for Team Deathmatch games.
Auction House decided upon because loot is a big part of the game, item drops are randomized, there are low odds for any given item, and trading is the best way to find items and improve your character. It's convenient, secure, and easy, plus you can trade items using gold or real money. Items, gold, and components can be sold - almost anything. Participate for free in real-money auctions as you'll have a small number of free listings every week. If your item sells you can output that money to a Paypal account or put it directly into your e-balance so you can put more items on the Auction House or use the money to buy a real-money item that you personally want. Auction House getting a smart search and advanced search so that you can search for the exact stats you're looking for.