[Consolidates and optimizes CSS in a way which I’ve not seen before][link].
Which is cool, but it would be nice if it could convert it BACK so humans could read/edit it easily. Check the examples, you will be glad you did. Hey, it does do that.
[link]: http://lesscss.org/ “LESS – Leaner CSS”
[via]: http://simplebits.com/notebook/2009/06/25/lesscss.html “Simplebits post on LESS”