I've made a video of the alpha DE on my n900 running on a class 10 sd card. Check it here if interested. Ignore the audio unless you want to hear how I breath after eating chili con carne =D
http://www.youtube.com/watch?v=FeNCjErbx30

EDIT: Ignore the music......you-tube made an audio swap with some crappy song on it. I have tried to change it to something equally annnoying...