IPhone OS 2 Apple II and Mac as one of the great revolutions in modern technology. It takes it beyond simple Phone + iPod, or even smartphone, and makes it the leading contender for the next great shift in computing." However, they criticized it for having stability issues and overall sluggishness. "Macworld" said, "The iPhone 2.0 software is full of the kind of refinements that you’d expect from a second-generation Apple product. The iPhone OS still isn’t perfect, and we wish Apple has addressed some lingering shortcomings, but it’s a welcome step-up for what was already arguably the best mobile platform on the
IPhone (1st generation) the phone." Jobs introduced the iPhone as a combination of three devices: a "widescreen iPod with touch controls"; a "revolutionary mobile phone"; and a "breakthrough Internet communicator". Six weeks before the iPhone was to be released, the plastic screen was replaced with a glass one, after Jobs was upset that the screen of the prototype he was carrying in his pocket had been scratched by his keys. The quick switch led to a bidding process for a manufacturing contractor that was won by Foxconn, which had just opened up a new wing of its Shenzhen factory complex specifically for this