The most attractive feature for a service like this is the collaboration features. I have a linux box set up for wake on lan and Dropbox so I can basically do the same thing as long as I have access to a terminal. What would be great was if the editor with ScribTex was something similar to etherpad had where multiple users can edit the same document at once and you can see updates in realtime.
I found this post this morning, went over there and haven't stopped smiling yet (sad I know). I threw a couple of 10 page or so assignments at it and after uploading a couple of .sty files it all went perfectly and rendered faster than my local machine, which was a bit insulting.
I was a bit taken aback that this has been live since January 2009 (if I'm reading their blog correctly) since an online LaTex editor is something I look out for on a semi regular basis (and has been for years).
