Various things come to mind...

DVB-T
fmrx/tx
Camera optics/microscope/macro
Dockingstation Pins (four tiny little gold dots)
Magnetic Car Holder
DiaryCover(TM)
Inductive Charger
Cardreader SIM/SD/magnetic
Laserpointer
DMXcontrol
192kHz/24bit Stereo-port
PDMS/Samsung'sMI
5GHz HIDserver (wireless mouse/kbd for your desktop)
Guitarhero-like buttons
Braille interface (Klaus Knopper's wife comes to mind)
Sensors humidity/temp/wind/light/distance
Scales
Money clip
CD/DVD/BD-Player

knock yourself out!