can i connect arduino to mobile with usb?

i want to control arduino with mobile phone,my phone is dopod S1,the system is windows mobile 6,so i can make a program with c# to control arduino,but now,how can i connect them with a usb? or use other hardware, i don't want to use bluetooth or wlan

Can your phone act as a USB Host? Does it have drivers for Serial Ports or USB-based Modems (probably not)? Does it support I2C?

Those are the most common wired ways to connect to an Arduino.

ah
thk u

There's an arduino shield which allows using Aruino as USB host. But you should also write your own driver for the phone....

it seams that use wifi or bt is the best choice