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Can't use this this product since it won't download and install 1.51 even on a new purchase.

To the previous brilliant reviewer...I care about dessert as it's my favorite part of a meal. As for the desert, if you've been to desert locales and/or are fascinated by maps and topography, you'll find these views extremely interesting. Now you can tell what's behind that inaccessible hill or mesa that you always wondered about. These maps would be great for hikers or riders plotting a course for business or pleasure. I just wish you had more New Mexico locales. Well worth the price.

Who cares about the dessert this app is lame

AWESOME,this app blows me away I i downloaded and used the GRAND CANYON map and it contained so many obscure little off the beaten path roads that i like to explore. For example check out JOHNS CANYON ROAD north west of MEXICAN HAT, UTAH this dirt road is in the middle of no where and in some spots is a white knuckle-r to drive it starts out high clearance two wheel drive then ends in 4wd, and here it is in this app start to finish. I was so impressed with the amount of detail , and the topo terrain and shading, that I decide to upgrade to the complete WESTERN STATES map and I was amazed to see that a new road here in south Orange County, Ca. that was just built last year and it is included in the Western states version, (talk about up to date). Yes the app takes a good chunk of memory so i had to delete a bunch of useless & ridiculous apps, videos, music and photos in my IPHONE 3G but but for me it is well worth having all this useful map data & info on the device, and not have to worry about WiFi or a cellular network where i go camping that stuff just doesn't exist. It was well worth the money spent. I use it with an IPHONE 3G paired to a DUAL XGPS 150A Bluetooth receiver , and it screams, the topo terrain renders and transitions from one map area to another is flawless, also the birds eye view with a little bit of angle to put your perspective behind the position cursor is real nice.

It took less than 30 seconds to download over WiFI. My 3G data plan does not allow downloads over 20MBs. That might be the other reviewers issue. I especially like the two finger map rotation. Really nice and extremely fast rendering engine in this app!

To answer Mark's question, it's 256Mb. Suggest you check your internet connection. Took me about 3 minutes to download and 1 minute to install. After playing with this for a while I'm sure there is more here than most people would ever use. Even on a trip to the Grand Canyon this would give you enough info to make your trip way more enjoyable. All the places that people never get to. Hell, I'm going this spring. See ya there.

Worthless as it stands with bad maps in limited areas with poor lettering and lousy graphics and repeated ad-cluttered pitches to upgrade, What's not to like??? Sometimes I think app developers are geniuses and sometimes, like these guys, are just either incompetent or con artists. Don't even give them the dignity if your click on. Sorry I did.

The maps are virtually useless: 1- the text used is far too large and does more to obstruct the view than it does to help. 2- all the text is oriented horizontally and oversized leaving you to guess at which text goes with which street. 3- The "buildings" shown on the maps are little more than sat view outlines with no reference or naming for parks, malls, etc. 4- The paid versions offer no benefit over the free maps so download the free first, If those serve your purpose, you may be ok with the substantially overpriced paid versions of this app. DISAPPOINTED

This is one of the most fantastic topo map programs I've ever used, and it is on my cellphone. If I only had this 40 years ago when I started backpacking. Roll Tide Roll!

I tried out this App, and within days had purchased the full Eastern version. See my extended comments there. Get the one for where you live.