A smart phone is popular now in Japan.
Then,how about all over the world?
This is a graph of Smartphones used all over the world.
Symbian is used a lot.
Apple and Android rapidly increased recently.
Why have they increased rapidly?
Iphone became popular because of interesting application programs.
Android became popular because it is cheapness.
Windous Mobile is growing up,too.
Hereafter,smart phones will evolve further.
I don't know Symbian.
返信削除What is Symbian?
I know only Apple and Android and Windous.