Hi, Can anyone suggest a navgation app among these three? I know it has been discussed a lot but since iPhone 4S is out I hope that someone already used them on 4S. I do not want to buy all of them and there is no way to try it out so your opinion is sincerely appreciated. My requirement: 1) Offline map, speak street names (I assume all 3 have them)? 2) Good GPS signal. I know it is related to hardware but somehow I heared that Tomtom GPS singal is worse than Navigon on iPhone 3GS without their car kit? I think iPhone 4S should be better? 3) Route: My garmin GPS almost alwasys give me best route that I would like to follow. Not sure if any the routes given by them are equal? 4) Lane guidance And better say "Keep left/right" etc. 5) Battery drain is not a problem as I use charger all the time in the car. 6) Poi is important but I can live without it 7) Traffic not sure never used that before. I know there are other free options such as Waze and Mapquest. Believe me I tried and am not impressed. I want something stable. I actually like Telenav but again I prefer offline map. Thanks!