The Sci-Fi channel is broadcasting Cube 2 on April 5th at 9:00 PM Eastern. This will let people check it out before purchasing. Here's the link.... Cube 2: Hypercube
FYI, Cube 2 is going to be rebroadcast on the Sci-Fi channel at 9pm EST tonight (Thursday).
I'm really interested in whether the original disc will be worth keeping. If the extras are nearly the same, the only benefit would be the original commentary.