I'm sorry to say but yes. This is because the 2.0 software has some classes that 1.x does not. One is "touch" which almost all 2.0 apps use. Before 2.0 all developers had to use "click" and in 2.0 apple thought about it and decided that "touch" was a better name for the class. Anyways, there are a lot of small things like that which makes them incompatible!