"Letter Rip" from the makers of Word Up. Pretty cool. Letters slowly appear on a grid and you have to make words from them by moving them around the grid, then swiping the word. As more letters get on the grid, it makes it tougher to move the letters around until the whole grid is filled, then you can make words like Word Up until there is room to move letters again. Once the grid is full, you get no more letters, except for a few given to you at the top of the screen to mix in. Work fast!