I just finished playing my favorite (flash-based) face book game on my iPad while walking around the house. Before that I went to hulu.com and watched the trailer of Prince of Persia. On the iPad.
Here's how you do it. Go to the app store and buy 'Air Display'. Once the app has loaded follow the instructions on the screen and install one other piece of software on your computer. Restart and configure your iPad as a second or third display for your computer.
Drag your browser with the facebook flash game session to your iPad display. Enjoy 'touching' the game.
Limitations: high quality flash based video is more like a slide show. The movie trailer ran fine.-