I would never have imagined that I could type a TeX file, view its real-time preview, download the resulting PDF, share it and much more in the Cloud... Yet using WriteLatex it is possible, also without a registration. That's amazing! Finally I can not only edit my templates on the net, but also I manage them from anywhere and on any device.
I have tried to adapt my old Python application written for S60 smartphones into a modern webapp which should be able to work in any recent internet browser. Therefore I have used jQuery Mobile to convert it and it was very easy, nevertheless my terrible programming skills. Below there is my final app and some description.