Technical language in a non-technical setting (humor, video)

I wouldn't usually submit this sort of item, but with Blackberry services still unavailable over large swathes of Europe, it seems apposite.

Even so, there's a more serious point. Often in trying to communicate technical subjects I run into the problem that science, math and computing have appropriated ordinary words and given them a specific, technical, and sometimes almost contradictory meaning. This can especially cause problems in UI design, where users are expecting - and expected - to grasp instantly the function and purpose of every button, widget and clickable they can see.

It's not always obvious.

Who is your audience? Have you defined them clearly enough to get this right?