As most said:
- turn by turn nav with excellent live traffic info (invaluable, Tomtom is close, but Tomtom is £80 plus £26 for traffic, all of that was free on android).
- quick toggle. My god. The lack of power switching/toggle is just retarded. Twenty pages in settings to disable wifi, switch off data data roaming, turn off sync and switch over to 2G. I mean 2G is disabled by default on 4S, but still - what used to take two finger movements and three presses while in the car now requires 2 minute break. Settings menus are all over the shop as well.
- lack of dots, comas and "press-longer-for-number" options on main page of apple keyboard. You don't know how much it slows you down until you start dreading writing messages purely because of it. I now know why they included Siri dictation in IOS5.
- I didn't think I'd say that, but android store was so much better than apple store app. You just never know how much the **** costs! In phone store only mentions that "in app purchases" might apply, whereas itunes pages are designed by a complete cretin, so you can't actually see what costs what inside of the darn app:
What on earth is that - 12 months of what for 26 quid? Just dumb.
- Surprising lack of quality power apps. What used to be free and feature-full in Android, now costs £0.69 and is, to my utmost surprise, mostly half baked, unfinished and very basic. So yes, there is "an app for that", but most of them are kind of like designed by kids then quickly abandoned.
Even if you take it to top shelf levels - lack of developer imagination is often shocking. Tomtom, for example, is uber expensive app. It doesn't get much more expensive and top shelf than that. It's used by millions, with a lot of feedback etc. So one would imagine the developer has a very good idea of how their program works. And yet - there is no way to cleanly exit the program completely on the move. No. I am serious. Pressing the button sends it into background, where it will eat use GPS and eat your battery for snack if you don't force exit it from double tap, there is no "Exit" button in any of the menus. If you want it gone, the only way to exit it without it running GPS in the background seems to be pressing screen, going into menus, choosing route options, selecting clear route, press menu button to exit app. Of course fiddling with the screen while on the move in your car is illegal in most European countries. It's one thing not to code exit button on the main screen, but not to have exit app option anywhere at all?. Beggars belief.
To lesser extent:
- no widgets on home page (that large clock/weather, messages and reminders everywhere, again - you don't know how good it was until its gone). Plus surprising inability to customise rows icons in rows. They just jump around and group, but you can have top row/empty row/bottom row for example. Just odd. Messy. Makes wallpapers useless as well.
But.. as an OS, IOS feels and works like its much better optimized and more finished. Hardware is good, OS is great.