Well, let's see. Cell phones can connect to the Internet and download streaming audio and video, including motion pictures and broadcast television programs. Computers can make telephone calls using VoIP and can certainly download and play movies and programs on any size screen. Televisions can be hooked up to WebTV and some cable/satellite providers provide two-way service, and cable companies are strating to offer telephone service.
So, my PC can mimic a phone and a TV in any size (Blackberry and Palm to giant Plasma), a phone can mimic a small computer or portable TV, and a TV can provide some of the features of a phone or computer. I guess the convergence is happening, and the question is almost moot.
I don't understand why people get such gadget ladden phones.
If they would adopt a slightly larger piece of equipment, they could have a mini-computer capable of even playing back a DVD/CD (think of something the size of a portable DVD player, about 1/3 the size of a laptop).
You'd get a "real" keyboard, a "real" video screen, CD access (for software, pictures, music) and COULD STILL store "i-pod" like music on it. DVD/CD/MP3/phone (with earphone)/radio wireless device.
But it wouldn't fit in your pocket. (unless you got bigger/deeper pockets or put it in the breast pocket of your jacket). Then again, Sony originally developed a pocket sized radio by making their own shirts with a slightly bigger pocket...