The issues of this approach:
.obj is almost universally supported.

Text format. Easy to debug.

There may already be libs available to parse this common format.

We still have control over the implemented 3d format (.zym) so other functionality can be baked in as necessary.

2-step export.

The issues of the md2/md3 approach:
darkplaces and nexuiz already uses a lot of md3.

1 step export.

The md3 format is kinda lame.
