Texpad is a new LaTeX editor designed for straightforward navigation of projects of any size. It’s compatible with Mac OS X 10.6, costs US$13.99, and is available at the Mac App Store. A demo is available at http://vallettaventures.tumblr.com/texpad .
When Texpad opens a document it scans through it, looking for LaTeX structure commands and any included files. Then it presents you with an outline view with which you can navigate the entire project.
Texpad replaces LaTeX’s obscure console output with a table of typesetting errors. Clicking on these errors will direct you to the offending line in the LaTeX source.