to install java and ant:
sudo apt-get -y install default-jdk ant

to install all other stuff
ruboto setup --yes

if things go wrong and some packages weren't able to beinstalled, run
android
and install packages manually

to create an emulator
android -s create avd -f -n Android_4.3 -t android-18 --sdcard 64M

and to run emulator -avd Android_4.3

example of project generation
ruboto gen app --package org.ruboto.example.quick_start

to deploy app to a device / emulator:
rake install start