What url protocols are already in use on the iPhone?

[diyaots]

Hi all

I am Jass thomas and i am new in iphone Application Development Please help me that [TABLE="width: 459"]
[TR]
[TD="class: xl64, width: 459"]What url protocols are already in use on the iPhone?

Thanks

Regards
Jass Thomas
[/TD]
[/TR]
[/TABLE]