Playstation Blog writes;
This awesome space supports the next level of UGC (User-Generated Content) on the Home platform with its Graffiti Wall mini-game. Here, you can use our graffiti tools to design your own unique art to display to your friends. There’s also a voting feature so that you can give props to the creators of your favorite designs, and a feature that allows you to share your masterworks and check out your friends’ latest and greatest creations – be it simple scribbles or extravagant frescos.