Hi There!
Yes the ifinder go2 is capable to receive waypoints from nmea sentance, you can create a route via map source,then save it in gpx format and then open gpsutility(freeware) and upload it to the ifinder go2 all the waypoints will appear to the unit but you will still have to remake the trail between the uploaded waypoints,allsow you will have to take out the (*) that appears before eatch waypoint before loading it to the gps.
You can build a cable for it with cheap parts here is the pinout, http://www.gpsnuts.com/Lowrance/iFinder_comm.jpg
more detail http://www.stud.ntnu.no/~gronslet/blog/200...as-gps-pinouts/
This little unit is capable to drive any palm or pc laptop with nmea routing program to.
finaly it is performing quite good for a budget gps but dont count on lowrance to get the information on this, they simply say that they dont carry any software for it. ???
Sorry for my writing y am french canadian!