It's quite demanding, so it won't run on older devices.
Makes heavy use of the fragment shader.
Check out the Live Wallpaper Version of this Benchmark Monjori Live Wallpaper which also runs, thanks to reduced resolution, on slower devices.
Shader Monjori from mic (http://www.pouet.net/prod.php?which=52761)
Samsung Galaxy S 2 (SGS2): 32-39fps
HTC Desire HD: 18fps
HTC Vision: 14fps
LG Optimus 2x (Tegra): 9fps
Samsung Galaxy S: 4 - 7fps
ZTE Blade: 4 FPS
Note that high-end devices are better served by NenaMark2 as they tend to hit the framerate limit (~60 fps) with NenaMark1.