Indeed. I don't like much the "looks exactly like .." comments, because (even if I sometimes do think them), similarity in interfaces is actually a great thing, as it allows more people to easily switch and pick from r/py/julia/matlab/octave/stata/spss or whatever language is more promising in other areas. In other words, it reduces the mental cost of switching.
Nobody mentioned notebook in this thread. Maybe you clicked reply the wrong place? Spyder is the Python IDE that takes after matlab, not ipython notebook.