The path tracker GPS isn't a turn by turn GPS app but something you use to keep track of bike rides or runs and then post the results to Facebook or something.
http://news.motionx.com/category/motionx-gps/
The Google driving app does look very nice but I'm guessing it needs a data connection for its maps. The TomTom app for the iPhone stores its maps on the phone so it works even when you are out of range of cell service or wifi. The downside is it takes up over 1 gig of storage but with iPhone's min of 8 gigs of memory it isn't that big of a deal.
Still I guess the Driod's 256 megs of memory is doable if the apps can store their data on its memory card since it isn't the actually programs that need a lot of space but it's the program plus its data. I checked and I run around 20 apps regularly in addition to a bunch more that I keep on my phone that I use sometimes.
Here is what I have on my iPhone. It's only around 2.5 megs of apps but they take up over a gig of memory with their needed data files.
