ros-n900 download files section can act as an APT repository. This is helpful to easily install ROS on N900 mobile phone. In order to do such, you'll need to install a new source from your N900.

• login to your phone
• edit /etc/apt/sources.list and add the following line:

deb http://ros-n900.googlecode.com/files /

• run apt-get update
• then install ROS, running apt-get install ros-boxturtle-base

(careful, this is a huge download, you should use a Wifi connection to preserve your dataplan).

ros-boxturtle-base package is optified, this means it will install in /opt/ros-boxturtle-base/ directory, in /opt partition (2GB) instead of rootfs (256MB).

You can also install ROS tutorials with apt-get install ros-boxturtle-tutorials

Use the same URL to deal with Debian source packages:

deb-src http://ros-n900.googlecode.com/files /