One reason you should not use web applications to do your computing is that you lose control.
application compute control
Richard Stallman
These are some quotes by No-nationality author Richard Stallman Scientist, who was born on March 16, 1953.
Quotes by Richard Stallman
A smartphone is a computer - it's not built using a computer - the job it does is the job of being a computer. So, everything we say about computers, that the software you run should be free - you should insist on that - applies to smart phones just the same. And likewise to those tablets.
