GPS on a CDMA Raphael already works standalone (without data or anything).
You just need to buy the proper software. I recommend OCN8 (aka iGO
.
http://www.buygpsnow.com/oncourse-navigator_64.aspx
I personally haven't tried it outside of North America, but the way GPS works, it should be the same worldwide. Plus, I'm sure many many people that are using the Qualcomm GPSOne chipset use iGO8 on their HTC devices in Europe. Just look on XDA.