TomTom , Navigon iPhone apps use GPS to give detailed street directions . The technology powerhouse has a turn-by-turn application in beta for its Android 2 operating system . Navigon app ( $ 99 ) is intuitive : Things are where reviewer expects them to be . Comment: Google has beta turn-by-turn app for its Android 2 operating system .
TomTom , Navigon iPhone apps use GPS to give detailed street directions . Navigon app ( $ 99 ) is intuitive : Things are where reviewer expects them to be . Comment: Google has beta turn-by-turn app for its Android 2 operating system .