There is a very simple but effective way to deal with the relative lack of updated POIs: use something like the Map2Geo app (there are also others that do the same thing) and just send the destination point from GMaps to IGO

Most of the time thats exactly what i do: I use Google Maps as a "POI searcher" and iGO as a navigator...

Of course, you can also make your own KML and put them on the userdata folder, but thats more complicated and less convenient