The strangest thing about it is how well it works for other apps (on an iMac BTW, so no, it's not a mobile card). I can get 90+ FPS out of Minecraft, run CoD4 just fine, and mess around with high-poly meshes in Blender, yet Blockland simply refuses to put a few shadows on my screen. What. A. Bummer. I was really looking forward to it too. :(
And Brian, I did just update to revision 1701. No dice. :(