My experience with this bug is that if I enter the pin code myself, instead of having the N900 communicate with the SIM card, it works: http://ubuntuforums.org/showpost.php?p=10953857&postcount=14
This workaround is coherent with my above quote regarding waiting before communicating with /dev/ttyACM0 (because it takes at least a second or so to enter my PIN code).
My experience with this bug is that if I enter the pin code myself, instead of having the N900 communicate with the SIM card, it works: http:// ubuntuforums. org/showpost. php?p=10953857& postcount= 14
This workaround is coherent with my above quote regarding waiting before communicating with /dev/ttyACM0 (because it takes at least a second or so to enter my PIN code).