It would be great if instead of using SurfaceFlinger, this project could compile to access the linux framebuffer directly. This would allow Android projects that don't use the windowing system, to use Qt applications as well.

This change doesn't seems trivial since adding -qt-gfx-linuxfb doesn't cause the plugin to compile without some a fix added to basefb files. Furthermore, compiling an example such as AnimatedTiles as an app to test this approach results in a segmentation fault.

It would be great if there was another shell script "androidconfig_fb.sh" that would expose this option.

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I'm sorry but I don't understand why you want to use linuxfb directly on Android? Why you don't want to use Android's window system?

Good question! We're working on a non-cellphone device that will sometimes run Android apps, sometimes Qt apps and we can't afford the resources to have Android running with Qt inside of it since we are running at a high resolution. However the Android platform comes with many nice tools and support from a large community.