Maestro A2200 GPS flash corruption
As David says above, your milage may vary! It seems the best thing to do with this module is a) don't remove the power b) use a voltage supervisor attached to the reset line.

Elektor, December 2013, have an FPGA project where they use a Maestro module but it is the A2035. They had two modules and bricked one of them but managed to reflash it with a tool from the Maestro website. The A2200 is possibly fixable in the same manner.

(Edit)I'll add from an email from Linx:

The SiRF modules require the controlled removal of power to prevent the internal registers from getting corrupted. The worst case scenario is that the programming gets corrupted and the module no longer functions as specified. This would require us to re-program the module, which cannot be done in the field.  The module would have to be accessing key memory areas when power is removed for this to happen, so it would not be a typical failure mode, but is the worst-case.