tJam appeared in Tom Cutrofellos list of best puzzle apps for 2011.
tJam (short for traffic jam) is an addicting puzzle game.
The goal: clear the roads by moving cars.
The rules: cars can move on roads that are either clear or the same color as the car.
This free version of the game features the first 15 levels.
The game has a highly customizable GUI.
Tap away from a legal move to bring up a quick menu.
Tap on the "down arrow" to get to the full menu.
Tap on the top buttons to cycle through different styles of "cars", edges, nodes and sound.