Right now the map cursor is a bitmap, there are 17 different ones, N NNE NE ENE..., and a diamond shape for 'unknown. So it isn't too hard to change it to something else.

Is is too unclear where it is pointing to, or too large, or does it obscure our current location too much?

Right now the cursor 'should' turn into a diamond shape when the fix is lost, but that doesn't seem to be working too well

Interesting idea about fix statistics. I just wonder how to implement it. In some cases I'm just polling the receiver once in a while, so I can't really tell wheter a fix was lost in between the polls. Well, I can always give it a try and see if the resulting data makes any sense.