Never really got that far with a 32x32 display, ok I followed Raspberrypi-spy s guide and got it to display things but wanted to try more out like Peter Onions excellent RGB demo.
So after running into difficulties compiling the c code from peteronion.org.uk/PiProgs I emailed Peter, I needed to add -lm to the end of the line and bingo worked straight away. The demos that Peter has included include Tetris, Clock, game of life, Squares and kaleidoscope and shows how a simple screen can be made to do literally anything.
I've since seen pictures over the tinternet showing the same displays being used to show pictures and framed in a frame too.
Many ideas and possibilities for this great rgb device.
MyPiFi add on boards for Raspberry Pi http://pages.ebay.com/link/?nav=item.view&alt=web&id=181629776059