title: Graph generation on iPhone
body: <p>Anyone have experience with drawing graphs on the iPhone?  Looks like GraphKit isn't an option, so it's up to the programmer to either write his own library (using OpenGL, I guess), or an existing library.  I can't seem to find any libraries that are confirmed to work on the iPhone.</p>
  
  <p>If you've written your own how did you go about it (opengl, quartz, etc), or if you used a library which one?</p>