If you like to see more hardware supported by the OpenInkpot, you can help a bit by donating some money:
http://lunohod.chipin.com/prs-505-for-openinkpot (if you see the German text after pressing 'ChipIn' button, just log in to the paypal in the another tab, and then press this button again).
In case you donate and want to be mentioned on "thanks" page, just add a note about this on PayPal form.