Does anybody have any idea when the Superdrive will be available on the 12" iBook? The Superdrive is the only reason why I would need a Powerbook over an iBook, and if i could get around spending the extra $500 on a Powerbook, that would be great. Do you guys think the Superdrive will be on a 12" by the end of the summer? Maybe even sooner? Or not a chance? Thanks!