I use a Nokia N97 with Garmin for regions I don't know and work fine here in Argentina. For Capital I use my brain or GuiaT to find a colectivo 
Taxi here in Capital are very expensive since a long while. So I prefer to go through the down for 1,20 (never pay 1,25)
Taxi here in Capital are very expensive since a long while. So I prefer to go through the down for 1,20 (never pay 1,25) 