Hello there,
today i managed to erase my project by mistake by using the Delete menu item under the tab button. I'm running Mac OS X 10.3.9 and Arduino-0007.
My opinion is that it should not be possible for a application to directly delete anything on a users machine. better would be to place it in the trash/waste bin/recycler and let the user decide if he really wants to delete stuff.
The command line is the place to directly delete stuff, but in a GUI it's better to have a safetynet.