First the coordinate system is upside-down 
This is not the main problem, I can deal with that.

The problem is that I want to create a row of cubes
like this: (+ = cube)

+++++

for(int i=0; i<5; i++) {
Object3D cube = Primitives.getCube(10f);
cube.translate(i*30, 0, 0);
cube.build();

world.addObject(cube);
}

I get a strange row of cubes, I get something like this:

+
    +
       +
          +
             +


Why does this happen I translated them on the X axis, I tried the other axis same thing but in other directions 
I didn't rotate anything!

Hi, I'm new to jPCT. 
I read that there is a small difference between jPCT and jPCT-AE.

How much different are they? What part is different?
How much time/effort will it take to port from one to another?

Testing on android is very slow ... I would rather develop the game for the desktop and test it and then port it to the Android platform and do Android specific testing.

Do you think I will be faster at developing if I do so?

Thanks.