Alexey Pajitnov certainly has a presence on phones and tablets when there's a seemingly infinite number of Tetris ports. His newly released Marbly is his first game built with mobile in mind, however. The iOS puzzler isn't as action-packed as Tetris or even Hexic, but it's as deceptively simple as Pajitnov's earlier work: players have to think several steps ahead as they match like-colored marbles. The game is easy enough to try when it's free, with in-app purchases available when gamers need a helping hand. It's also just the beginning of Pajitnov's mobile efforts -- publisher WildSnake Software claims that he's working on more releases, which suggests that there's plenty of all-too-addictive gameplay in our future.