Quote Originally Posted by bcd View Post
One Issue I can see is that some of the new phones only use USB for comms, and as a PIC cannot act as a USB Host device you will need to use a serial interface to the phone.

Bill.
I have used a Maxim SPI to USB Host chip (MAX3421E) and an ATMega48 to communicate with a GSM module successfully. The Maxim part should work with a PIC just as well.