LyX 2.1.0 released
lyx.org
lyx.org
But oh my, did their graphical equation editor save me from a lot of headaches at university. I could produce a clean and printable version of absolutely anything, as long as I remembered to set the math mode blocks to be larger than the surrounding text segments.
I would love to see a web app that aims for the same thing.
I don't have much of a reason to use it anymore, but I really appreciated this software. Even though it would occasionally crash on my admittedly unstable laptop Linux install (never tried it on windows)... I guess you could use Emacs or hobble through using a gui in MS word or something (actually there probably are some alternatives, I just never looked into them), but if you do a lot of LaTeX/text work you might want to look into LyX.
Layout enhancements: "The beamer layout has undergone a major revision. Some long-standing drawbacks were removed, and some important beamer-specific features (such as overlay options) are now supported natively. Contributed by Jürgen Spitzmüller."