For future reference here is the repository info from maemo::

nano
Home Page: http://www.nano-editor.org/
Status: Works
Version: 1.2.4-5
Port Page: http://aeracode.org/index.php?page=maemo#nano
Port Download: http://aeracode.org/maemo/nano_1.2.4-5_armel.deb
Port Contact: Andrew Godwin andrew@aeracode.org
Repository: http://aeracode.org/maemo
Distribution: ./
Component: blank

Nano, the tiny text editor. Simple recompile from Debian stable.

If you get the Error "Error opening terminal: xterm." you need to install the package "ncurses-base" via
sudo gainroot
apt-get install ncurses-base