Most of today's portable projectors are very easy to use. They come with about as much hardware as a laptop. Usually just two to three cords (power, PS II mouse, and audio/video cables) and the projector itself pack into a bag small enough to carry on the plane, or place in the back seat.
They are plug-and-play, user-friendly and they can be set-up in a matter of minutes. Even with the challenges of a constantly changing environment, in most cases all you will need is a power outlet and you'll be good-to-go.
2 things NOT to worry yourself about:
Number of colors - All projectors have 16.7 million colors
MAC and PC compatibility - They are all PC and MAC compatible
Features that make your projector easier to use:
* When selecting your projector look for INTUITIVE MENUS, which allow you to easily adjust color fidelity, choose between HDTV and NTSC broadcast, and easily switch your video sources.
* Full function remote controls also can make your life a little easier.