Well, that was a tad anti-climatic... It does render much faster since it does a lot of smart caching on its content and only renders glyphs that are required. See the Screenshots of Downpour, which feature a huge amount of labels on the same screen.

By the way, Nils just published his blog post about Coordinate Systems, so head over to our devblog and give it a read: http://rayne3d.com/blog/10-05-2013-coordinate-systems-and-other-abstract-things