[ToRFutureBoy]

So they made some changes again last night.

Monk
Active Skills

Serenity

• Skill Rune - Tranquility: Duration of immunity granted to nearby allies from crowd control effects reduced from 2 seconds to 1 second

Mantra of Healing (tooltips will be updated in a later patch)

• In addition to increasing Life regeneration for you and nearby allies while active, Mantra of Healing will now also shroud you and nearby allies with a mystical shield that absorbs damage for 3 seconds after activiation (up to a limited amount, based on level)
• Skill Rune - Boon of Protection: Has been renamed Boon of Inspiration
• Mantra of Healing will now heal you when dealing damage to an enemy (heal amount will be based on hero level)

Lots of Bug Fixes & AH Changes too. See the full list here: http://us.battle.net/d3/en/blog/6020042

EDIT: People are not able to log in after this patch, myself included. Stops at "Retrieving Hero".
EDIT #2: Battle.net is now "down for maintainence". I guess they are fixing it.
EDIT #3: As of 10:00AM NZT they are aware of the issue are are fixing it. If you are getting an error as above, they know about it and will have servers up asap.