Favorite GPS, mobile services
About 10% of mobile phones are GPS enabled, according to American Technology Research. If you have one of these phones, you might want to consider two of my favorite services - MapQuest Mobile and Telenav.
Mapquest costs $4 a month, and is used to help you find places from wherever you are without you having to know where you are. Telenav is a $9 a month and is a navigational device. If you want a voice-guided system on your phone, Telenav works really well. I demonstrated how both worked on MarketWatch Weekend, which airs on CBS.