status bar with icons to simulate home or power button press
You always can install Button Savior on rooted ROMs (however I'm not aware if it has compatibility problems with some). It worths a try, because it's free (but also has a pro version to purchase).

It allows you to add hardware keys of your phone as virtual software keys on any location of the screen. So you can easily trigger home or back keys just by touching their icons on screen, even on full-screen apps and games.