Ok, I'm going to take a risk at being flamed in effigy by saying, this is fundamentally bad!
First, the loss of the scheduled releases is a mixed bag. There is a certain merit to not releasing something that isn't ready for prime time rather than releasing it and calling it a "beta" to explain it's failings. But, in my view, having a set schedule for product releases is important. Why? Without a release schedule, it makes Apple product release times just as volatile as any other tech company, leaving people who buy products feeling jipped when a new version comes out a few months later (see 3rd Gen iPad owners - sure it's been 6 months, but give it time and we may see that get shorter and more random).
Second, it's always been my feeling that Apple's future is secure as long as Jony Ive and Scott Forstall remain at Apple for the foreseeable future. Was maps an epic fail? Yes, no doubt about it. Should it have maybe waited until it was a more finished product before replacing Google Maps? Absolutely. However, as much as I like Jony's designs, and they are really sweet designs, I'm not a terribly big fan of his opinion on skeuomorphs. In my view, Apple has made their products appeal to mainstream, somewhat technophobic, customers. Little touches like skeuomorphs add something to the OS design that gives the casual iOS user a sense of familiarity and makes them more comfortable and at ease using them, and less technophobic. Kind of like "hey, this isn't so bad." Getting rid of these touches will just return them to being cold and impersonal devices and bring back the casual customers phobias regarding tech. Steve and Scott seemed to understand this, which is why they added these things. Jony maybe an awesome designer and engineer, but he, in my view, lacks the understanding of what the average customer needs to feel comfortable using such highly advanced devices. Steve and Scott, for all of their failings, knew this and knew it well.
If Apple is sending a message that they are dumping these little touches, and I think this likely, then I believe it will have a very negative impact. All of the sudden, those folks who came to like and trust and use iOS devices will start having a negative reaction to them and start abandoning them. They won't be able to understand why, because these little things work on the subconscious level, they'll just know they don't like it anymore.
Sadly, I fear Apple may be headed back in the same direction it went in the late 80's and early 90's, and Jony, Tim, et. al., will not understand why.
One more thing (no pun intended), someone pointed out how Jony may be favoring form over function and mentioned the iMac, it's thinness and lack of an optical drive. I too find it a bit ridiculous that they opted to make the thing that thin but let me touch on the loss of the optical drive. I generally am in the category that physical media is on the way out, to be replaced by downloads and digital content. However, in my view, removing optical drives from desktops (and high end laptops) is not ready for prime time. I'd give it a few more years yet. I'd say 2015 or even 2018, then eliminate the optical drive on all but the most high end desktops (ie Mac Pro).
My 2 cents...