Blizzard has dropped the bombshell today. Similar to how WoW and Warcraft 3 works, they've released a 'Test Realm' on the NA servers to test some tentative patches and tweaks to Bnet2.0. Huge things are a foot and you can check them out here: 
http://www.teamliquid.net/forum/viewmessage.php?topic_id=174036 or 
http://us.battle.net/sc2/en/forum/topic/1213111662 but the Battle.net forums are down right now.
 
Essentially, here are the huge things to take from this:

• Chat Channels!
• Protoss Air/Sky Toss buff! (Phoenix + Voidray buff)
• 2 Pylon block on the ramp isn't possible anymore
• Hallucination researches a bit faster (4gate hallu timing is sharper)
• Fungal Growth doesn't affect air units!
  
• SCV Priority changed (Melee units attack repairing scvs instead of running around repairee target)
• Bunker timing reduced. (This is tentative)
  

Hate any void ray buffs. They're fine in 1v1 but the things break any moderate to high player count FFA games. Gah. 
 
Edit: the buff isn't that significant. They do +20% more damage to Massive which is actually a good buff to make them better at countering units they're supposed to counter. 
 
Flux Vanes has also been removed. Dunno if that means their speed upgrade is completely gone or if they start with it. 
 
ignore my pessimism, good change. 
 
Also, to anyone who wants to hop on the PTR, load up SC2, update it. Then quit. Go to your SC2 Folder and launch Starcraft 2 Public Test.exe to hop on. 
 
GLHB

Really like the buff to hallucination.  It makes it more usable in  4gate (already tested it).  Now people will just up and quit when they see not only a 4gate force, but a colossi or two at their front door.

" Hate any void ray buffs. They're fine in 1v1 but the things break any moderate to high player count FFA games. Gah.  Edit: the buff isn't that significant. They do +20% more damage to Massive which is actually a good buff to make them better at countering units they're supposed to counter.  Flux Vanes has also been removed. Dunno if that means their speed upgrade is completely gone or if they start with it.  ignore my pessimism, good change.  Also, to anyone who wants to hop on the PTR, load up SC2, update it. Then quit. Go to your SC2 Folder and launch Starcraft 2 Public Test.exe to hop on.  GLHB "

Lots of small, unnoticed changes as well.
 
You can no longer block the bottom of zergs ramp
Ultras splash arc is bigger
That scv autoreplay while attackmoving trick is dead
 
Honestly though, the biggest hit to Zerg is the removal of being able to make units by holding down the hotkey. Now if you are trying to remacro right after a fight, you have to press the hotkey once for every unit. That means you need to press Z 50 times to spawm 50 larvae. That sucks.

Wonder if they will drop this patch while the GSL is going on like they did during season 2. I dont think it would change anything though since it seems that there are barely anymore toss in season 3 and the patch seems to be toss friendly.

"Fungal Growth doesn't affect air units!"

Made me smile :D

" "Fungal Growth doesn't affect air units!" Made me smile :D "

Void Ray buff? What the fuuuuuuuck?

Can we start naming the people we have played so far? I played Marine King and EGIdra so far. I lol'd, then lost

Damn, this is a huge patch. It'll be interesting to see how things will pan out.

Toss air buff could be huuuge 
 
we've already seen the VR and phoenix used more often during gsl 3 
 
 
 
i don't really think the fungal thing will go live, ZvZ will become utterly retarded muta vs muta games and pheonix is gonna raaaaaaape

Yeah, everyone should keep in mind that this is just a testing thing. This isn't anything final. I also don't think the Fungal change will happen. I will only start to get mad if that actually happens.

Hopefully the fungal growth thing doesn't stay. 
 
Otherwise ZvZ will become so much uglier.

" @sixghost: Thanks for reading my OP :| "

You glossed over the EXTREME GRAPHICS OPTION!

" @sixghost: Thanks for reading my OP :| "

Wtfff every Toss player is going to go 1 gate starport. I'd expect to see 2 queens at each hatch and reallllllly fast lair tech now. Worst part is it's so hard to reliably scout a Toss base

Aw shit, Toss bout to be OP again. 

Hallucination and phoenix buff? Observer cost reduced? Surely I must be dreaming, because these patch notes are like a window into my heart.

Great, air harass is now even easier against Zerg, and my anti-air build is largely defunct. My remaining options against quick air units are to cover the entire map in spore crawlers, or get really really lucky.

Yeah Toss is about to be shaken up a lot; glad I learnt a little bit of Toss before this patch hit, I at least know how to adapt my PvP a bit, hopefully we can see some Void Ray dogfights :3

" Yeah Toss is about to be shaken up a lot; glad I learnt a little bit of Toss before this patch hit, I at least know how to adapt my PvP a bit, hopefully we can see some Void Ray dogfights :3 "

The fungal thing would be terrible...harder to block incoming (scouted) drops in TvZ/Muta play in ZvZ

" @billnyethesciencepie:  Maybe that's the point of the change. "

" @billnyethesciencepie:  I like muta micro fights, don't you? :( "

The Protoss air buffs were sorely needed IMO.  Not sure that 10s less build time is the right number for the Phoenix, maybe 5 less would be better, but they did need a buff somehow.
 
The real issue is Fungal Growth change.  I see a lot of discussion about PvZ with this change, but IMO the big problem is ZvZ.   ZvZ used to actually be a rather interesting matchup once you got past the initial ling/baneling play by going roach.  Now without FG hitting air the game will be a straight rush to muta and the player who gets there first will dominate.  The ONLY defense ZvZ against Muta without FG is Corruptors, which are not very cost effective.
 
But, I hear you say, what about those Hydras?   Yeah.... the day you can actually get a Hydra force to be where you want it on the map against a harassing Mutalisk force is the day you become my hero.  This is sort of the same problem that now exists in PvZ.  Hydras are now the only counter (and the only ground to air period) for the Zerg against Phoenix play and since Hydras are so DAMN SLOW off Creep, they are pretty much an in-base defense unless your opponent's army is already decimated.

They really want to help the poor Protoss. 

Jesus fucking Christ.  Being a Terran player is the fucking worst.

Bunker, Fungal Growth and hotkey change reverted! Yay!

surprised they reverted fungal growth don't even know what they were trying to fix with that one.