This script imports starred items from Google Reader to Instapaper.
Oh hell yes.
sudo easy_install opster sudo curl http://github.com/kennethreitz/instareader.py/raw/master/instareader.py -o /usr/bin/instareader sudo chmod +x /usr/bin/instareader
Stick it on a server's /etc/crontab and you're golden!
/etc/crontab
instareader readername:password instapapername:password