Even if canonical manages to deliver on the promise of the Ubuntu edge I think they are going to face an uphill battle all the way. Now that I have downloaded the latest iPhone, version seven, I realize the importance of incremental software user interface changes. The killer interface would’ve been accomplished had Apple been able to implement both the legacy and the next-generation interface simultaneously. The classic interface would’ve been helpful as some of the slower to adopt users would not panic or be forced to use more traditional pushbutton phones. The next few weeks will be very interesting for Apple’s future.