Thanks for the replies guys. Keep'em coming while I look into the vb.net resource kit.<BR><BR>As for what the program will be for, I'd have to say just basic stuff. Phonebook management, SMS ...

This gives me the desired latency of 1ms for writing then reading 1 character off the serial port.<BR><BR>Now, I need to be able to switch between using the FIFO buffer (to write 5-30 chars at a ...