@mhahn, you beat me to the post! I was going to post source compile instructions and ipk's
Option #2 (download and install attached files)
download ncurses-terminfo_5.9-r15.1_core2-32.ipk and nano_2.2.5-r3.0_core2-32.ipk
then run:
opkg install ncurses-terminfo_5.9-r15.1_core2-32.ipk
opkg install nano_2.2.5-r3.0_core2-32.ipk
Edit: Do to the fact that the forums auto zips files, it is probably easier to use mhahn's instructions to compile it by your self. If you do go the opkg route, you will need to unzip the attached files first