Road plan
---------
* Use Vertex Arrays/
  VertexBufferObjects/
  DisplayLists/
  glInterleavedArrays
* States/cities/roads overlays
* Atmosphere
* Mouse control

Roam update
-----------
* Find a better way to fix great circle errors
* Improve garbage collection (use timeout?)
* Refactor height functions
* Fix texture rendering at edges w/ linear filtering

vim: ts=2 sw=2 sts=2