Nexus 4 can Mount&Blade too!
As you now, Mount&Blade Warband is limited to Tegra 4 only (Tegra Shield), but with help of GLTools we can open it on Nexus 4. Even when we start the game we can't do almost anything without hardware buttons. While using GameKeyboard I was able to play with onscreen buttons.
Here's what I've done:
GLTools - fake CPU/GPU from template Tegra 4 for Warband (1st screen)
GameKeyboard - Choose Touchscreen->gamepad and check joystick mode option (2nd & 3rd screen)
Start M&B with onscreen buttons - if everything set up correctly you shouldn't have any problem with analog sticks.
ROM: Latest Purity 4.4.2
Kernel: HellsDoctor R2 V22