While celebrating the Mac’s 30th birthday, Apple execs have talked to the press this week in interviews with Macworld, and ABC News. The former has already been published revealing that Apple doesn’t plan to merge iOS and OS X, but the latter will late on Friday evening on World News with Diane Sawyer. However, a short tease of the interview has already aired during Good Morning America, showing Apple’s Tim Cook, Craig Federighi and Bud Tribble talking about various matters related to the company. Elaborating on the fact that the Mac Pro is being built in Austin, Texas, Cook also confirmed that the company’s recent investment in Arizona is indeed related to sapphire glass. When directly asked by David Muir whether the sapphire