The offhand sure in hell isn't, it's utterly crap for Enhance Shaman. That's why it's so weird. Shaman T5 looks, and all.

Most definately, so we'll never get the set bonus. But the MH is nice and it looks bad ass.

Supremus is much, much bigger, and has a correspondingly larger hitbox!

We noticed the giant Supremus but we noticed really small hitboxes on everything.

Unyielding Bracers/Belt now have the non profession specific +20 resilience bonus instead of the tailor-specific -5 melee damage

I was wondering if mobs in Magister's Terrace give SSO reputation. I doubt it given the staged nature of reputation gain through other sources, but would like to rule it out.

Battleworn Tuskguard. Changed from 40 block rating to 40 defense rating.

I noticed that BT has a 24 hour reset timer once you zone in but before you kill bosses. I assume this is to prevent people from farming the trash then resetting the instance.

The daily quest in Shattrath, I forget the name of it, where you have to go to the Oshu'Gun area and sample the fiery things using the goggles the NPC gives you, don't equip the goggles before you actually get there. I equipped them as soon as I got them in Shattrath and flew on out to Oshu'Gun and wasted a lot of time flying around looking for what needed to be sampled. They were completely invisible to me. It was just bugged, and I unequipped and reequipped the goggles and I could see the fires fine.

... and I just disenchanted them because I thought I'd never use them again. Oh well, guess the vindicator wrists + belt is a better combo anyway..

Does anyone have any specifications for how Magtheridon's was nerfed?

Shoot. I should have looked before posting - the details are in the transcript of the Blizzcast at BlizzCast Episode 2: Interviews with Chris Metzen, Geoff Goodman, Andy Chambers and Tom Chilton

Reliquary of Souls is bugged, he does not Deaden or Rune Shield (not that that really helps).

We still got through stage 2 but it was about 20 secs after mana ran out.

Or Rune Shield from what I've been reading.

The duration of the Mental Exhaustion debuff has been reduced, such that you only need one person to per cube.

Also, there can only be one Infernal per Channeller.

In Mount Hyjal:
Horde Camp Witch Doctors no longer put down healing totems

Archimonde's Targetting hit circle is now about the size of the one on ROS.

Warriors can no longer intercept back on air bursts

Mining nodes in MH don't appear to drop green gems anymore, have a higher rate on epic gems and now drop a grey fragment that sells for 30g/stack (20 stack)

Edit to add:

12 rep for each mob kill, 375 rep for each boss. 1500 rep for Archimonde.

The mountains now have an invisible wall on them once in combat

Correct, but it seems this is causing some changes to doomfire tracking onto him more often. Either we are playing bad, or figure 8's are now common with DF (or maybe onyxia deep breaths more)

Who else is stuck on Brutallus?

After Kalegcos is killed you will then be able to take a portal from the start of the instance to his dead body, very helpful!

Contrary to the patch notes, Paladin taunt does NOT work on the Kalecgos encounter when you need to get the demon off the NPC.

It's no longer possible to double dip on the human Sword and Mace specialization bonus. Last patch, you had a single expertise stat, and if you equipped a sword/mace, you'd get +10 expertise.

Now, when DWing, the character sheet has two expertise values, one for each weapon.

Are you sure you didn't zone into a saved instance? We farm trash with the soft resets on the weekends between raid nights if the right bosses are down and it's not a problem. Kill everything, zone out for 30 minutes, go kill everything again.