This allows you to easily symlink /dev/urandom to /dev/random to work around slow randomness. This will speed up your device quite a bit as Android will use /dev/random for it's randomness, /dev/random being slow this makes everything that kinda needs it slow. /dev/urandom being fast speeds it up quite a bit.
At the moment this app only seems to work with SuperSu, if you'd like support for other root app feel free to add support (but don't break anything please).