Hah, both comments on mine mention Portal. I never played ND but Portal was a blast; we'll see if someone picks this team up and help them make this a full game the way Valve did with ND/Portal.
I really liked ND. There were some elements it had that I thought were cooler. Like the ability to shoot portals through portals if I remember correctly.
I agree. Of course, Narbacular Drop wasn't that fun to play either and with Valve's involvement that became Portal. So this could have some potential.
OTOH, what is up with the screenshots link being a zip file you download? What a terrible web page.