The secret? A clever microsuction material, which has been imported straight from Japan, is found in the base of the buttons and helps them attach to the smooth glass surface of the screen without scratching it. Simply launch any game, which makes use of onscreen buttons, and place The Classics on top of them. This is excellent for bringing the action back to shooter and platformer games.
Unfortunately to anyone, who wishes to get their hands on a set of Classics, this can only be done after donating $30 to the project. A set will be shipped to all contributors as soon as production starts in May this year. Among the other touchscreen-friendly products by Joystickers are a stylus and a brush, which you could use to draw mustaches on people's pictures and do all sorts of other neat things.
source: MobileCrunch via TUAW