The first thing you are greated to is a cg cinematic when you play the regular version of Assassin’s Creed. When you load the iPhone version you are greeted to a movie of the regular version’s gameplay. Right down to targetting cursors appearing on characters running around the screen.
The gameplay itself is solid; the biggest hurdle is the virtual joystick. Either you will be able to deal with it or it will break the game for you. Try the newly launched demo/free version to test this.
Otherwise it is a nice looking platformer (for a phone game). Though, I did notice my battery drop pretty quick while testing out the demo.