Now here's a neat little game: Diner Dash. It's really nothing more than a glorified Tapper CITE>, but with much more to do. The first five levels can be played online for free, but I recommend downloading the platform-specific demo; in its 60-minute limit, you can easily complete a dozen levels.
I flew Delta Song this past week, which I apparently had not done in awhile, as I was surprised to experience my first domestic flight that provided its passengers with video screens in the rear of the seats. Headphones and access MP3 and live television were provided free-of-charge, and games (such as Bejeweled and movies were $5 (less than the food, w hich was decidedly NOT free). A mouse-sensitive game like Diner Dash would work great in a touch-screen environment such as this.