I am often in areas without a wifi (I use an iPod Touch) and would like a really simple overview page tucked away somewhere.. maybe in the the settings tab, down by 'About Mantis'.

Just a quick way to learn about different features of the program.  Many of the features are becoming so rich and for a new user can be a bit difficult to find all of them (especially with the hidden corners).  Something someone could scroll through to read about what they can do with Mantis...

Just a thought.