Mohammad if you read jobs resignation you can deduce that he believes in the powers of every man in apple and he believes apple will continue to be one of the best companies in the world
"I believe Apple’s brightest and most innovative days are ahead of it. And I look forward to watching and contributing to its success in a new role"
You think iOS developers were behind the come back in the 90s , iOS developers started their development in 2008 when the AppStore was introduced .
Ok and if jobs weren't the leader of apple , do you think they would do what they did ?
I know Jonathan Ive was the designer of the iPod :
http://en.wikipedia.org/wiki/Jonathan_Ive
But without the trick of jobs apple couldn't be what it is now :
http://www.guardian.co.uk/commentisfree/2011/aug/25/steve-jobs-what-next-apple
"As CEO of Apple, Steve Jobs was like a French chef: he strove to create great products and had great dramatic flair for presentation. On the product side, he was a pioneer in embracing the techniques of top-class industrial design for the company's hardware and usability for its software."
Every person who is immersed in apple's history knows the favors of jobs
The techniques jobs used helped a lot in the come back of apple not iOS developers :P
In addition if you took a look at the first link , you must have seen this :
"Steve's extraordinary vision and leadership saved Apple and guided it to its position as the world's most innovative and valuable technology company. Steve has made countless contributions to Apple's success, and he has attracted and inspired Apple's immensely creative employees and world class executive team. In his new role as Chairman of the Board, Steve will continue to serve Apple with his unique insights, creativity and inspiration."
Jobs was the one who inspired his employees
Jobs will not leave apple you and won't miss him in the event he will be in the front line . ;)