Razer's Sixense electromagnetic orb threw around plenty of intradimensional portals at CES, but sadly the company wouldn't let us play. Today at E3 2011, however, we were finally handed the reins. Those twin sticks are impressively responsive and accurate in the specially-made Sixense levels for Portal 2, and it's a heck of a lot of fun to physically stretch out blocks, reposition portals with a twist of the wrist and physically throw objects through the air. However, we got the impression that outside of games particularly designed to work with the sticks, it might be a different story. Waving the right stick around works pretty adequately for controlling the mouse cursor, but when we exited out to Windows, the sticks didn't work -- apparently, controls have to be mapped separately in a desktop client to work with the OS and other games or programs. We don't think many PC gamers will mind the six-foot range and wired tether here, but it does restrict those hoping to kick back with a game on the big screen.