What I would like to see on the phone is a built in remote to control everything from your home alarm system or lights, to your tv (everything in your home, around your home, that is remote compatible), to starting your car (it would be cool to have it on a timer so it will start your car for you at a certian time, that way it will be warmed up and ready for you as soon as you get into it on a hot summer day or a cold winter day).
The features like that would make it so much more convenient as well help eliminate the influx of things you have to carry at one time or grab.
Think about it. The possibilities are endless. Ahh, sitting there and just clicking a button on the cell phone to function everything that is remote compatible in and around your home (if logitech can do it why can't the cell phone manufactureres ??. Laziness dream come true!