This is, IMO, a HUGE WIN for people that actually use Apple products. The quality control lately has been very poor. Maps was beta (at best), flare issue with iPhone 5, delays in the new iMacs / iPads (mid-November shipping). I think the storage limitations and price increase for the iMacs is a big mistake. The UI on Contacts, Calendar, etc. are HORRIBLE. Apple wouldn't release a replacement iPhone to my daughter when I was out of town. They are still acting like Willy Wonka when there are lots of competitors in the market. iOS is no longer a Golden Ticket.
Apple products need to "just work" - the current Homer Simpson UI design path is not the direction Jobs would want.
Here is the good news: Windows 8 is going to be, I bet, a massive failure for M$FT. I can't see how the enterprise is going to accept Metro sucking down bandwidth, causing unbelievable confusion, is ugly, and has privacy issues (e.g., ads for Adultfriendfinder or Viagra ads) pop up on your home screen in front of co-workers, your kids or wifey poo.
Most exceedingly brillant people have some quirks and he apparently alienated a lot of people. Apple should have given him a three month sabbatical and a strong warning but kept his brillance. It is Apples loss for not adjusting adapting and overcoming his quirks as he has done an exceptional job over a long period of time.
A hugely positive and most necessary move. Yes, brilliance is at times odd - why lots of brilliant folks still live in their moms basements.... But, they can't alienate other brilliant execs and amazing teams around them. All of Apple Inc is rejoicing and the Street will be pleased.