Brimstone will officially be used as a material to craft the new craftable amulets.

http://us.battle.net/d3/en/forum/topic/7592581161?page=26#new-post

Posted yesterday at 6:35pm central. I'm guessing prices are going to go up.

According to Lyrilla on the b.net forums it will just be amulets right away, and they are looking for ideas to include them in other items.

I guess people feel the need to downvote this to keep it from being seen, but the price has gone from 30K to 50K in 10 minutes.

Posted in: Auction house, gold