Anyone here tried Telenav now that it is available for the G1? Get TeleNav GPS Navigator for T-Mobile G1 Phone with Google!
TeleNav is to expensive for the occassional non profession driver ... that just commutes and is not driving as a daily part of their job. $9.99 /month before taxes .... There are reasonable alternatives on the Market ... if they are not as polished and feature rich as Telenav.
I have never had a GPS in any car...and I find having Google Maps alone is pretty amazing...I don't have a voice or recalculations of route automatically, but like Jim said for the occasional need it has been amazing.