In the picture is a Samsung Galaxy S next to the upcoming Samsung Galaxy Tab. The picture makes the Galaxy S look like it has better screen resolution. Samsung announced that it will be using a different screen for the Tab than the one they use for the Galaxy S. The Galaxy S used a Super AMOLED screen. The resolution on this screen is awesome and it promotes better battery life. Samsung has said that the new Galaxy Tab will use a Super TFT screen that will have even better battery life and still have good picture quality. By the looks of the picture, that doesn't seem so. Maybe its just the picture?
The following video is the Samsung executives talking about the different screen: