An excellent tool to lock a few applications if you don't want
other people to launch them (asks a password). The good thing with
this app is that it is very simple to protect or not an
application: double click the home button (just like to delete
them) and tap the lock. It's not high security though. For
instance, if the application is already launched and the iPad is
paused, when it resumes you directly go to the application without
any password required.