TomTom ($100), Navigon($70) and Sygic($80) turn-by-turn navigation systems all get a once over from Macworld’s Jason Snell.  Concusion: all are good but a bit pricey at the moment.  Update: Gizmodo has a more in-depth review.

We’d like to see some other apps thrown in there and also a comparison between the iPhone app and the seemingly better choice of a low end stand alone GPS which retails for around $50-$70.

 

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