Yes but i tested it with lvl 70 buffs like sunder armor and cor and even with 15 or 17% armor mitigation the armor pen gem was ahead of the other gems (compared to 20exp,20hit,20agi and 20str). (Near the armor pen cap the value was 2x-3x, at 15% mitigation around x1.2).
We don`t know about lvl80 boss armors now, but we can assume that cor/sunder armor etc. will scale with the new ranks to counter this.

Has anyone in beta had the pleasure of experiencing the resto talent Replenish while in cat / bear form?...

Replenish (3/3):
Your Rejuvenation and Flourish spells has a 15% chance to restore 10 Energy, 4 Rage, 2% Mana or 10 Runic Power per tick.

I know at one point i saw something similar on a hunter ability. I believe it had to do with the hunter giving the same rage, energy, mana and runic power back to the group after a crit.

Sounds like an amazing thing to have on top of all the new energy regen / reduction we are getting in wrath.

The hunter talent you're thinking of is Hunting Party, and yes at 5/5 (100% chance) its the same bonus for the entire group (10 energy/runic power, 4 rage, or 2% mana every 8sec on crit). Its a deep survival talent, giving one more reason to bring a hunter of that spec to the raid.

10% bonus to shred for 5 points is not that good. It may even be very weak, if our white damage ratio increases. And with 20% haste from WF, more AP, and maybe off-hand attack in dire cats, It will probably increase.

Does anyone else think that Savage Fury should just be removed and rolled into the base abilities? No self respecting feral uses Claw, the scaling for Rake is lackluster even considering 30% armor mitigation, Trauma and needing a bleed for Rend and Tear, and Mangle (Cat) is used once every 12 sec in pve with maybe double the frequency at best in pvp.

I remember there being a superior version of Thick Hide higher up in the feral tree back in the alpha that reduced spell damage taken. If Savage Fury were to be removed, it might make sense to drop Sharpened Claws and Primal Fury one tier down, move Thick Hide to Savage Fury's old talent location and alter it to the Reinforced Hide talent. This prevents easy access of resto and balance specs to free spell mitigation, lessens the margin ferals have at being the worst at tanking against magical damage and frees two talent points in a bloated tree.

Outside of an implied strongest offtank role, it's a bit difficult to discern developer intent when it comes to druid tanking. We're still in the dark about bear form threat modifier being 130% or 145%. Considering the strength of current druid threat, 30% extra damage on Maul from Mangle may be what devs think suffices opposed to reworking threat modifiers. The 15% swipe damage on Feral Instinct would then just be maintaining our old aoe threat but increased damage.

On that tangent, with warriors gaining Shockwave and Thunderclap scaling, druids appear to be at the tail end of aoe tanking. Unless it's intended that druids specialize at tanking three mobs very well, and drop significantly in effectiveness as that number is increased, it might be prudent to increase Swipe targets through an existing talent. Having Shredding Attacks or Imp LotP increase targets affected by Swipe by 1/2 could lessen the gap in aoe tanking viability among the tanks.

According to the beta forums, it's 145%. Just wasn't reported.

If the Death Knight starting area is any precursor to what is to come in terms of PvE content (talking about the part where there is a massive amount of scourge on the screen). With every class getting at least some form of AoE it seems like it plays right into the lore that we will see vast hordes of scrouge in multiple PvE encounters deeper into the content.

Swipe still only affecting three targets seems pretty dismal for us to handle large scale multiple mob encounters.

It would be stupid not to. As currently implemented, players currently use and rely on the use of items by way of a stupid and borderline exploit macro which doesn't fit with the spirit of forms.

Enchants, I'm honestly surprised, but quite excited. Good change.

Interestingly enough I'd still use healing pots as they're done now instead of not switching because they effectively gain 40% more health back per pot that way. Unless it's impossible to do so for some reason. It should be doable; just have to add the cancel form part to the beginning of the macro.

Cat form it wouldn't matter of course, but usually you want to shift in cat form anyway. So that's kind of a wash.

Using potions in forms takes the potion off of the GCD, which can be critical. I agree that when it's convenient, getting the additional 40% health is nice, but I've been in many situations where I'm mashing my pot/HS key and getting caught in the GCD.

Assuming things remain similar to TBC, Druid tanks will be superior tanks during the early raid game. This mirrors the beginning of TBC, and this is due to the significant returns of armour early in the game.

We are however assuming that armour values for druid gear stay high. With the removal of crushing blows and the homogenization of gear, we may see druid armour come much closer in line with that of plate + shield. So long as our overall avoidance (by way of agility scaling and dodge) stays in line with warriors, paladins and death knights, the tanking returns should remain similar. This also allows us to make more direct use of consumables and buffs that increase armour value, such as Ironshields and Inspiration - one of the major factors in the relative dip in comparative quality of druid tanks near the end of SWP.

Due to the inclusion of armour on trinkets, rings and amulets, we should maintain something of an armour lead simply based on our armour modifier, but it may not be anywhere near as pronounced as it is currently.

To be honest, universal leather homogenization is the single most worrying issue for me going into WotLK. We'll see how it plays out.