Did Steve jobs leave behind ideas for future iPhones?

Or did he last work on the iphone 5

Yeah he said "let's make a tablet without any innovation but smaller = $$$$".

IPhone 5 is a failure. I have an iPhone 4 and frankly, it's not worth getting the iPhone 5 because the IOS is the same. Steve Jobs probably didn't spend lot of time working on the iPhone 5 because he was sick, and you can tell, as it is rubbish.