You can stack the four blocks that comprise the Tetris Shelves set anyway you'd like. Now reconfiguring the furniture in your house can be a fun and creative task instead of a boring chore. I can't wait to see these shelves in Ikea someday soon.
Implications - There are few pieces of shelving I've ever seen more stylish or comic. There's a certain level of power and style attached to some gimmicky commodities. I'm sold. Call me when it's in stock.