> Nothing. Mobile phones are just toys, they have little or no practical use.
If practical means keeping your job and not looking like an idiot to clients then for about a whole lot of people they are very practical.
> Speaking of useless, what's that facebook thing all about? I've had a facebook account for years and still can't figure out what people see in it.
It's just another way for people to share things. Different strokes for different folks.