Examples of Mobile Computing in Everyday life?

Hi, i am doing a college assignment on mobile computing and was after a few ideas of mobile computing in everyday life that we use.

If you are talking about mobile computing as in embedded devices:
Mobile phones
GPS/Sat nav
MP3 Players


You mean that sort of thing?

any vehicle with EFI(Electronic Full Injection), which is almost everything today, has an
ECM(Electronic Control Module) to manage the engine and transmission -- the ECM is an analog computer.

any device with a GPS feature is using a computer to solve the triangulation from three
sattelites to find your position on the planet -- thats solving a set trig equations using a digital computer.

every cell phone with an address list has a digital computer, and phones which run games or other applications -- that's digital too.