Hopefully, a notable company makes an app that is reasonably priced.
Well there is one out right now, and it works pretty well, it is $20. I would imagine that when they release 3.0 garmin or someone will come out will a very good one.
Also, that application is $20 for the East and $20 for the West. Since most GPS units offer complete North America maps, it would equate about $20 (east) + $20 (west) + $20(? for canada) = $60.
I wouldn't get my hopes up for a Garmin application. Since they are hard at work on the NuviFone, I don't think they would take away potential sales of their hardware by providing software elsewhere. Although, I might be wrong since Amazon did it with Kindle.
or google still working on apps for the iphone.
Also, what is this $20 GPS app that is available now?
The app available now is Gmaps. But it was pulled from the store by the developer late last week, with the promise of being back soon.
Google doesn't sell their iPhone apps though, or anything within them, so its doesn't take away from them financially.