#28 Disguise would be useful
Some sort of user-definable program disguise would be useful here. It could be very inconvenient sometimes to have a program on one's USB drive that starts up, advertises itself as high-grade encryption, and asks for a key. I'd prefer to have (for instance) a diesel engine test program, that starts up with a General Motors logo and a bunch of diesel-related technobabble, and says "Enter engine serial number and connect diagnostic interface." The engine s/n field would actually be the key, after which the program would either start up in the text editor or say "Invalid serial number." Other users would naturally want to customize the program to fit their own professional interests, so that it would seem to be a normal part of their tool kit.
Of course, this would probably best be done by making my own personal source code edits, but it would be useful in any event.
