I'm thinking about making games for tablets. Coming from a PC/console background, I'm keenly aware of the huge differences in the user interfaces, and that I need to design it with the target platform in mind.
One aspect I'm worried about is player fatigue. The input devices used on PCs and consoles - keyboards and game controllers - are optimized for extended play and have mature, ergonomic designs. Most seasoned players can easily use them for an hour, clocking in thousands of key/button presses, without suffering from fatigue. Designers can depend on this when designing the user experience, with consequences ranging from size/length of levels, steps required to execute commands, pace of the game and many more.
What about touch-screen tablets? Do players become fatigued faster, or are unable to execute as many taps/swipes per unit of time? If so, are there any resources or guidelines about this matter?