Julia has kick ass features for computation.
However what is the point of computing so much if the data cannot be visualized/inspected ?

Current 2d plotting capabilities are nice, but no real matlab/scilab/scipy competitor would be credible without some kind of 3d plotting.

One way of going would be to "port" mayavi to Julia.
http://github.enthought.com/mayavi/mayavi/auto/examples.html

Mayavi builds on top of VTK, so the 3d system itself would not be reinvented from scratch.

I think this would be relevant feature to have for release 2.0...

ps: 2d or 3d plotting systems in Julia should have SVG/PDF output, so it can be used in scientific publishing...