Here's what I'd like to see: -
1. Widgets, or at least shortcuts to common settings like Bluetooth/WiFi.
2. Decent sharing API, not just sharing to Twitter and Facebook.
3. File system access.
iOS is just too basic without at least those basic features.
I think iOS is generally fine as it is but we should now have the option to remove ALL apps we don't want and add our own for any feature. They could also allow us to double up the dock (or place one in the extra row at the top) so we could pin more regularly used apps.