Is this a revision B of the dual 2.0 that is now selling side by side with the 2.5. Or is it the same machine, just lowered in price. The reason I'm asking is because I was going to buy a dual 3.0 (thinking like everyone else they were going to be released soon), but figured it would be more economical to get the dual 2. This would make even more sense if they patched up anything wrong with the first dual 2.0. Any help on this would be great!