Auto-windows; press and hold the lock (to close) or unlock (to open) button to open/close all four windows
Reverse; Yes, your rear wiper does automatically wipe once when you select reverse (took me by surprise the first time)
Stereo Settings Save; brilliant, i've found that my ipod needs the stereo set up differently to the radio and different to the CD player, also, i'll have different settings for if i'm in the car on my own to when i've got passengers.
[might i suggest that you compile all the suggestions into a single list in your original post, possibly grouped in some manner when the list gets bigger to facilitate finding the relevant info]
[also, may be useful to get a definite list of the bulb types required for each bulb on the different models all in one place]