Not got my car yet but from reading here and drooling over it at the showroom.
Auto-Dimming rear view mirror is an option £200 on the Type S - perhaps offer it as an option on the rest of the range.
Software update to scroll long MP3 names for those of us without Sat-Nav.
Option of Run-Flats with adjusted suspension would be nice ~ ala BMW series 1 style - As an option though - NOT as standard.
Upgrade on Headunit - perhaps a unit with built in bluetooth connection (these are out for under £150 in aftermarket sector - so not too expensive for Honda to organise).
(hmmm an auto-mute Boyfriend/girlfriend option??? Would guarantee Honda could never produce enough to satisfy demand

)
Well thats my 2 pennies worth.
Alex