Well this should put an end to Galaxy S 3 announcement rumors for now, because Samsung themselves have just said the Galaxy S 3 will not be revealed at MWC:
"Samsung is looking forward to introducing and demonstrating exciting new mobile products at Mobile World Congress 2012.
The successor to the Galaxy S2 smartphone will be unveiled at a separate Samsung-hosted event in the first half of the year, closer to commercial availability of the product.
Samsung stays committed to providing the best possible mobile experiences for customers around the world."
In a way this is great news. Maybe they are actually planning to put that ultra-powerful Cortex A15 2 Ghz dual core processor in it. Again, I'm only wishing this because we don't really know how much power that thing will draw. If it's significantly less efficient than even a quad core Cortex A9 chip, then we're probably better off waiting for Cortex A15 to be paired with Cortex A7 thanks to the big.Little technology, before we see it in a phone. Believe it or not, that might actually happen by the end of the year, even though it was supposed to arrive in 2013. But it seems Samsung has made a deal with ARM (by using their Mali GPU?) so they can get Cortex A7 earlier .
Another reason why they didn't want to show it at MWC, is because they don't want it to steal any thunder from the next-gen Galaxy Tab, which might actually feature that powerful Cortex A15 chip. This is probably the most likely reason why they aren't showing the GS3 phone at MWC. In fact, they may show 2 tablets at MWC, one dubbed as GT-P5100 and one as GT-P3100 in a leaked form screenshot.
The more expensive one should be the P5100 with the larger than 10.1" screen, the ultra-HD 2560x1600 resolution, and the dual core 2Ghz Cortex A15 Exynos 5250, while the P3100, is either pretty much the same spec and price wise, but with a smaller screen (and resolution, but around same PPI), or Samsung's attempt at a low-end tablet for $200-$250.
At this point, they should be able to make a $200 that is even better than the Kindle Fire in every way, and still make a decent profit on it. But the ultimate goal for Samsung should be total dominance of the tablet market through sheer numbers. They can only achieve that if they sell millions and millions of $200 Android 4.0, dual core, HD tablets. With a strategy like that Samsung's leadership would be uncontested. It remains to be seen if they will do something like that, though. So far, I've only seen Asus as the one to really focus on both quality and delivering it at a very reasonable price.