Off the top, so I'm probably leaving out my most wanted...

) Ability to delete .mp3 file (& remove from gPodder?) from Media Player App

) Ability to return to Player app (W/ controls) after hitting "Back" button to see playlist

) Personalized Ring Tones

) Speak (Text2Speech) name of incoming caller

) Full Call Log (e.g. when did someone start calling me and how many missed calls am I getting in trouble for?)

) <Shift><Rub> should be <Del>

et cetera ....