I am new with TM (and quite new with Mac anyway) and I like it a lot! I used WinEdt for LaTeX and Matlab. It has a very nice feature: If you are typing an umlaut like ä, ü, é, etc. it writes in TeX-code \"{a},\"{u},\'{e} etc. to the tex-file, while the umlaut is still seen in the editor. The advantage of this is obvious: You don't have to care about the encoding, you can share the file easily and the spellcheck works still fine. This feature could be interesting for html as well.

Moreover, since one like to see greek letters like "α" (UTF8: CE B1) instead of \alpha an automatic replacement in the editor (while still writing \alpha to the tex-file) would be very nice, too!

I didn't found any discussion about this topic in this forum. Is this of interest for you? Is there a solution already? I would be very pleased about this feature.