While I have tremendous respect for Sir Ive as a designer, I'm beginning to notice a trailing-off of quality in Apple's software products ever since Jobs departed. Little quirks and irritants which would never have made it to the outside world in Jobs' days, are now sneaking out.
Apple has the design part covered, but it seriously needs a fanatic who will make sure that every iOS release is perfect. They lost that fanatic, and he hasn't been replaced.