Samsung Galaxy S II

Behold, the Samsung Galaxy S II. The original Galaxy S ushered in a new era of power and screen technology in a form factor that was so light you had to heft it to believe it, and the sequel continues that trend.

The Galaxy S II steps things up with a 4.3-inch screen at 480x800 with the new Super AMOLED Plus technology, a dual-core processor, 1GB of RAM, either 16GB or 32GB of storage (plus microSD up to 32GB), Wifi b/g/n, USB 2.0, a 1650mAh battery, aGPS, an 8MP rear camera and 2MP front camera (and 1080p recording), and the new Touchwiz 4.0 atop Android 2.3.

And it's all done in an impossibly light form factor. The Galaxy S II, while slightly larger than its predecessor at 125.3mm tall and 66.1mm wide, is thinner -- yes, thinner -- at 8.49mm. The iPhone 4, by comparison, is 9.3mm thick. And the Galaxy S II weighs just 116 grams.

Touchwiz has been bumped to Version 4.0. It's still full of bright colors -- which look even better on the Super AMOLED Plus screen -- and it highlights four major hubs -- Readers, Game, Music, Social.

The camera app has been reworked for the better, and the widgets now look and feel a little more processional.

We're going to be spending a good amount of time with this beast this week at Mobile World Congress. Check out our initial hands-on after the break.