Ahead of Mobile World Congress, the biggest cell phone event of the year, Engadget got their hands on some leaked internal Samsung documents with information about the Galaxy S2 and the Galaxy Tab 2, follow-ups to two of the most successful Samsung Android devices yet.

Samsung Galaxy S2
Feast your eyes on the  Samsung Galaxy S2 to the left, which looks pretty similar to the first-gen Galaxy S models with a few less buttons and what looks like a thumb trackpad of some sort. Samsung is jumbo-sizing the screen on the S2, moving from a 4″ screen on the original Galaxy S models to a 4.3″ screen on this model. It’s also “Super AMOLED Plus,” so it should be even better looking than the original’s plain-ol Super AMOLED. “Plus” means more sub-pixels, which means a crisper screen and even better viewing in bright natural light.
The other specs of the device include a 1GHz dual-core processor, Android 2.3 Gingerbread, an NFC chip for reading all of your RFID tags, and a standard 5MP camera. All of these great specs are packed into an insanely thin frame–reportedly only 8.5-9.9mm thick. As of now, it looks like the Galaxy S2 is HSPA+ (AT&T & TMobile) only, but I wouldn’t be surprised if a CDMA  or 4G LTE version for Verizon pops up sooner rather than later.
Samsung Galaxy Tab 2
Samsung looks to be following up their fairly successful Galaxy Tab with the larger, honeycomb-equipped Galaxy Tab 2 pretty quickly. The Tab 2 is a “Google Experience” device,  meaning no TouchWhiz or other Samsung customizations. We’ll be looking at 100% stock Android 3.0 on this device, and I couldn’t be happier. It has a screen size (10.1″) and resolution (1280×800) that match the Motorola Xoom. With any luck the Galaxy Tab 2 price will be lower than the Xoom’s outrageous $800. Less information was leaked out about the Tab 2 device, so we don’t know whether it will have a single or dual-core processor. Chances are it’s going to end up the same as the Galaxy S2 in this department, so a dual-core is more likely than not.
Samsung is holding a press conference tomorrow, and we assume these devices are on the slate for official announcements. Check back here for more information as it becomes available.