I know there are browser apps with notification bar hidding with the full screen feature. They just don't have the nav bar hidding built in.
I have seen the code examples for turning off the nav bar with SYSTEM_UI_FLAG_HIDE_NAVIGATION but I am not a developer.
I have also seen how to add the following "qemu.hw.mainkeys = 1" to the build.prop file but I would have to root my tablet. I am willing but my tablet is a Filemate T730 and I can't get any rooting apps to work (I am on Windows 8 x64).