Said simply:

"Space Qube is a voxel based retro shooting game which is going to hit iTunes store soon. The game is basically composed of two parts, game and workshop."

I love the idea of a rich iOS game that allows the ability to share your creations with others. For a time, I too enjoyed Words with Friends because it was a really interesting shared experience. Space Qube also shipping for free? Pretty much a must play for me.

http://www.lynxengine.com/games/spaceqube/index.php