The shading looks quite bad, it's not smooth, looks more like toon shading. Is there any way to improve it? (I know that custom shader is always the answer, but I can't get opengl 2.0 to work with live wallpapers)

Hi, I'm playing a little with jpct, basically I import an obj model, use code from helloworld example and I get this: http://dl.dropbox.com/u/17880002/device-2012-01-29-161636.png
It looks really bad and I'm wondering whether I made a mistake somewhere that's causing this.

Thanks for the answer. I'm looking into shaders now.
Btw, is something like this http://youtu.be/qWVJKfOhFTA?t=4m29s (except for shadows) possible to achieve in jpct-ae?

I started playing with jpct-ae yesterday - so far I'm impressed.
Now I'm trying to achieve some nicely looking materials:
I'm loading 3ds file exported from 3ds max (a kettle for example) and even tough I set setSpecularLighting to true, it doesn't look very good.
I suppose that a shader would do the job, but I've no experience with writing shaders. Are there any basic shaders available to use with with jpct-ae?