Sometimes we are confused about Smartphones, actually what a Smartphone is?
The term smartphone is usually used to describe phones with more advanced computing ability and connectivity than a Normal Mobile phone.
A smartphone is a combination of Personal Digital Assistant (PDA) and a mobile phone. Now a days the Mobile consist of media player, High Definition camera, high resolution touch screen, GPS navigation, Wi-Fi, Mobile broadband and a web browser that can access the mobile sites and also the standard web pages etc.
The Manufacturers of the Smartphone are HTC, Apple, Sony Ericsson,Samsung, Nokia, Blackberry etc.
These are the Operating System (OS) that Run in Smartphones : Apple iOS, Google Android, Microsoft Windows , Nokia Symbian, BlackBerry etc.
For more information about smartphone http://en.wikipedia.org/wiki/Smartphone