Durante of Hydraxis-US did what many Hunters have been dying to do since the changes for Wrath of the Lich King were announced: He tanked a raid boss. Or more specifically, his pet tanked a raid boss. His Gorilladin (dubbed thusly by BRK) Bubbles smacked Gruul around for a raid made up of members of the guilds Snuggles, Redemption, Gone Casual and Unemployed.
I'm not sure if this video displays how powerful Hunter pets are after patch 3.0.2, or just how much raids were nerfed. A little from column A, a little from column B? In the thread on the official forums, Durante mentions that the raid's DPSers didn't really need to hold back on threat much at all, nor did they need to stand around forever as you can see in the video above. A few seconds was more than enough time for Bubbles to hold aggro, and the raid only had four healers. I'm willing to bet things would have gotten a little more dicey if Gruul lived long enough to stack more Growths, but he didn't, so it's kind of moot. If you're interested, Durante has also posted his 'tanking' spec as well as his pet's spec.
I'm willing to bet we'll see a lot more Hunter pet tanks in level 70 content, but it'll drop off dramatically (perhaps completely) at level 80. Time will tell!