My iPhone used to be fast. Most things used to be snappy. Now it is slow as shit. From the address book lookups (which I have timed to usually clock in at 8-9 seconds, but which can take as long as 20 seconds) to the atrocious piece of penguin dung that is the podcast app. Seriously, Apple could not have created a shittier app if they had hired a bunch of Microsoft engineers to bang their foreheads on keyboards for 88 hours.
iOS software is fucking slow.
(Firing Scott Forstall to stop the skeuomorphic wankery was a good start. Now they need a real software engineering director to beat some sense into the engineers and to make sure they have "Concurrency 101" under their belt before writing another line of code)