dude, finish your sentence! The suspense is killing me!
i dont mean to troll, but once the name changes
...the general, untrained populus will get the two identical apps confused as being different, repositories will have their keyword for "gimp" changed, thus forcing regular users to dig up what the name change was (annoying to do, especially if a script handles fresh installs), etc, etc.
So many people used the javax.swing library before it was officially released that they chose not to change the "javax" to "java" because of the pressure from developers not wanting all of their GUI programs to fail at the next java update.
To play my own devil's advocate, Pidgin did this nicely, though they were forced into the situation and got a decent amount of online press for it, which informed the public of the name change.