As far as product launches go, the 10-inch Galaxy Tab 2's debut was relatively discreet. Announced with little fanfare, it's not even on display in Samsung's booth here at Mobile World Congress; you'll have to talk your way into a private room if you want a shot at getting hands-on.And we can see why: with a 1280 x 800 display, 1GHz dual-core processor and 3-megapixel rear camera, its specs are nearly identical to what you'll find in last year's