Congratulations.

For many tasks, terminal commands are the fastest and easiest ways to get the job done. Although it is trivially easy to do damage with a terminal command, it is really not that hard to use it without adverse effect.

On the other hand, I am in constant fear of messing something up with a slip of the finger in maemo 5. I think GUIs are great, and maemo 5 pretty good. But I think it is far too easy in maemo 5 to tell the n900 to do the wrong thing, even when I've remembered the right invisible obscure gesture to make, but don't quite execute it correctly.