Got me another reboot to WinMo (while filling out a form with soft keyboard under Opera Mini). See attached log (looks like a IP stack/ppp network issue).
I actually had a SOD earlier (green LED wouldn't wake up no matter what I did) when my battery was less than 10% (this was the value when I pulled the battery and boot back to WinMo). Unfortunately, I wasn't able to find the SYSTEM_LAST_KMSG for that SOD