Texpad is a LaTeX editor designed for straightforward navigation ofprojects of any size. 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 swiftly navigate the entire project.
Texpad's elegant single window design saves you from the clutter of windows. In even the largest projects all files are accessible from theoutline view to the left of the editor. This one-window design works especially well with OS X 10.7 Lion's fullscreen mode.