Good news, guys. I reproduced the rfcomm crash and was able to stomp the causal bug.

I subsequently released Maemo Mapper v1.2.3. As usual, you may download the new release from the Maemo Mapper Garage Files page, or you can upgrade straight from the Garage Extras Repository (v1.2.3 is available now).

The bug may have been able to cause crashes even without using rfcomm, depending on your GPS receiver, so even if you do not use rfcomm, if you experience crashes, please upgrade to Maemo Mapper v1.2.3 before filing a bug.

And let me know if you experience crashes with the new version.

Thanks for all the feedback!