Hello,
I'm trying to learn some specific WM programming, so I'll be glad if anyone can write me anything about it, or show tutorials etc.

Subject:
Receiving and sending data via buil-in usb port.
I'm planning to connect some kind of controller to my pda, and I need to send data to it.
Also, I'll need to receive data from sensors (connected to that controller?).

I'll be glad for any tutorial or reference, thanks!