What functions do cell phones have, and what functions are in the works

I know cell phones today can be used as phones, email hubs & digital cameras. I think and assume they are starting to be used as MP3 players, camcorders & voice recorders too. What other functions are being worked on in the future. What about radio and television reception, do these functions exist yet for cell phones? What about a cell that has full internet access and a running OS with a 2-3" monitor or something?

It may be a matter of semantics but I believe there are PDAs which also function as cell phones.

Did our great grandparents have to choose between a plain wood stove and one tha that had a built-in concertina?

Here’s a Chinese company that’s on the leading edge of software developemnt for 3G (next generation) cell phones.

http://www.chltec.com/

My cell phone (Nokia 6800) can get radio reception. I never use that feature, though.

Here in Japan you can use your cellphone as a GPS navigator, complete with a map that will guide you to your chosen location. (Think Car Navigator, but for your phone)

Dunno if it’s unique to Japanese phones, but I’ve never seen it befiore.