Don't forget the Nobel prize.

Easier than encryption, and likely to scramble a text enough to avoid all filters. There's probably an app for it.

http://androidsecuritytest.com/features/logs-and-services/loggers/carrieriq/ The bottom of this page has a section about detection including an app to detect hidden UIs.

Goatse, don't click.

I have to agree. I find it much faster to open a terminal (with a keybind), type mv $FILE $NEWFILE, close the terminal with another keybind, and go back to my business. The less I use the mouse the faster I am. I don't use Windows, but just by looking at that cluttered UI (seriously its a file manager not a airplane control panel) I am put off.

It is still possible to use a text installer with the ubuntu minimal iso. It is only 19 MB I believe and it downloads the packages as you go.