iDork Lite is a free, 15-level preview for iDork, a path-tracing game similar to other arcade/puzzle games for the iPhone and iPod Touch in which you use your touch screen to draw a path to help a stick figure avoid various obstacles--in this case, animated pencils, protractors, erasers, and other deadly school supplies, since your "iDork" is "lost in a world of school paperwork."
Once you trace a line for your iDork to walk on, you move him by placing a virtual thumbtack where you want him to go, and pressing a jump button for him to avoid obstacles and jump between the lines you draw. An eraser button lets you erase your lines, even letting you "drop" your iDork down with a double-tap. Each level gets progressively harder, requiring a combination of arcade quickness and puzzle-solving ingenuity, as you often have to time your moves quickly to dodge fast-moving hazards--but unfortunately the game's difficulty often arises from its interface, which doesn't let you control your iDork directly or scroll around to see a level. This difficulty is compounded by fairly linear level design and the fact that you have to restart at the beginning of a level each time you die, which can get tedious on more complex levels.
Overall, iDork Lite is reasonably fun but otherwise unremarkable for a free game, although it should give you a good feel for the full game.