hello Mikael, so far that i can understand from the comments at youtube is the aircraft the PMDG 737, and the program that provides the airhostess and co pilot is FS2Crew.. i haven't come to contact with this program before, but someone else might be able to tell you more

but it seemes like the program goes trough the checklists, the first thing first, then you click 'OK' and check it off with the program, and then it'll tell you the second thing on the list and so on.. but as mentioned, someone might be able to tell you more :]