I asked about JTAG only out of curiosity and am unlikely to do anything with it. What I'd like to know is if I will be able to connect a USB-to-RS232 null modem cable to the mircoUSB port and hook up a physical terminal such as a VT100 (in reality I'll probably just hook it up to my PC and connect to it with cu or minicom). This would obviously be more convenient than building a cable to hook up to the pad connectors under the battery. I'd also like to be able to do the reverse and use cu or minicom on the N900 to connect to the serial console of a server.